1. products list

Comparison results

RS422+ RS822+ RS1619xs+
RS422+ RS822+ RS1619xs+
Hardware Specs
Hardware Specifications
CPU
CPU Model AMD Ryzen R1600 AMD Ryzen V1500B Intel Xeon D-1527
CPU Quantity 1 1 1
CPU Core 2 4 4
CPU Architecture 64-bit 64-bit 64-bit
CPU Frequency 2.6 (base) / 3.1 (turbo) GHz 2.2 GHz 2.2 (base) / 2.7 (turbo) GHz
Hardware Encryption Engine
Memory
System Memory 2 GB DDR4 ECC 2 GB DDR4 ECC SODIMM 8 GB DDR4 ECC UDIMM
Memory Module Pre-installed 2 GB (2 GB x 1) 8 GB (8 GB x 1)
Total Memory Slots 2 4
Maximum Memory Capacity 32 GB (16 GB x 2) 64 GB (16 GB x 4)
Notes Synology reserves the right to replace memory modules with the same or higher frequency based on supplier's product life cycle status. Rest assured that the compatibility and stability have been strictly verified with the same benchmark to ensure identical performance.
  • Synology reserves the right to replace memory modules with the same or higher frequency based on supplier's product life cycle status. Rest assured that the compatibility and stability have been strictly verified with the same benchmark to ensure identical performance.
  • Please select Synology memory modules for optimum compatibility and reliability. Synology will not provide complete product warranty or technical support if non-Synology memory modules are used for memory expansion.
  • For more information about the recommended memory configurations, please check the Hardware Installation Guide of your Synology product.
  • Synology reserves the right to replace memory modules with the same or higher frequency based on supplier's product life cycle status. Rest assured that the compatibility and stability have been strictly verified with the same benchmark to ensure identical performance.
  • Please select Synology memory modules for optimum compatibility and reliability. Synology will not provide complete product warranty or technical support if non-Synology memory modules are used for memory expansion.
  • For more information on the recommended memory configurations, visit here.
Storage
Drive Bays 4 4 4
Maximum Drive Bays with Expansion Unit 8 (RX418 x 1) 16 (RX1217 x 1)
M.2 Drive Slots 2 (NVMe & SATA)
Compatible Drive Type* (See all supported drives)
  • 3.5" SATA HDD
  • 2.5" SATA SSD
  • 3.5" SATA HDD
  • 2.5" SATA SSD
  • 3.5" SATA HDD
  • 2.5" SATA HDD
  • 2.5" SATA SSD
  • M.2 2280 NVMe & SATA SSD
Hot Swappable Drive*
Notes "Compatible drive type" indicates drives that have been tested to be compatible with Synology products. This term does not indicate the maximum connection speed of each drive bay.
  • "Compatible drive type" indicates drives that have been tested to be compatible with Synology products. This term does not indicate the maximum connection speed of each drive bay.
  • The maximum raw capacity is not limited by the maximum single volume size. Synology NAS models may utilize capacities over the maximum single volume size as long as each volume created is below the limit. (Learn more)
  • The hot swappable drive feature is not supported by M.2 SSD slots.
  • "Compatible drive type" indicates drives that have been tested to be compatible with Synology products. This term does not indicate the maximum connection speed of each drive bay.
External Ports
RJ-45 1GbE LAN Port 2 4 4
USB 3.2 Gen 1 Port* 1 2 2
Expansion Port 1 1
Expansion Port Type eSATA Infiniband
Notes
  • This device's 1GbE LAN ports have a maximum transmission unit (MTU) size of 1,500 bytes.
  • The USB 3.0 standard was renamed to USB 3.2 Gen 1 by the USB Implementers Forum (USB-IF) in 2019.
  • This device's 1GbE LAN ports have a maximum transmission unit (MTU) size of 1,500 bytes.
  • The USB 3.0 standard was renamed to USB 3.2 Gen 1 by the USB Implementers Forum (USB-IF) in 2019.
 The USB 3.0 standard was renamed to USB 3.2 Gen 1 by the USB Implementers Forum (USB-IF) in 2019.
PCIe
PCIe Expansion 1 x Gen3 x2 network upgrade slot 1 x Gen3 x8 slot (x4 link) 1 x Gen3 x8 slot (x8 link)
Appearance
Form Factor (RU) 1U 1U 1U
Size (Height x Width x Depth) 44 mm x 478 mm x 327.5 mm 44 mm x 480 mm x 492.6 mm 44 mm x 480 mm x 518.6 mm
Weight 4.38 kg 6.4 kg 8.16 kg
Rack Installation Support*
  • 4-post 19" rack (Synology Rail Kit - RKM114/RKS-02)
  • 2-post 19" rack (direct mounting)
 4-post 19" rack (Synology Rail Kit - RKM114/RKS-02) 4-post 19" rack (Synology Rail Kit - RKM114/RKS-02)
Notes The rail kit is sold separately The rail kit is sold separately The rail kit is sold separately
Others
System Fan 40 mm x 40 mm x 3 pcs 40 mm x 40 mm x 3 pcs 40 mm x 40 mm x 2 pcs
Fan Speed Mode
  • Full-Speed Mode
  • Cool Mode
  • Quiet Mode
  • Full-Speed Mode
  • Cool Mode
  • Quiet Mode
  • Full-Speed Mode
  • Cool Mode
  • Quiet Mode
Power Recovery
Noise Level* 28.5 dB(A) 27.4 dB(A) 39.3 dB(A)
Scheduled Power On / Off
Wake on LAN / WAN
Power Supply Unit / Adapter 100 watts 150 watts 150 watts
Redundant Power Supply
AC Input Power Voltage 100V to 240V AC 100 V to 240 V AC 100V to 240V AC
Power Frequency 50/60 Hz, Single Phase 50/60 Hz, Single Phase 50/60 Hz, Single Phase
Power Consumption 37.93 watts (Access)
13.43 watts (HDD Hibernation)		 47.69 watts (Access)
16.7 watts (HDD Hibernation)		 68.68 watts (Access)
34.78 watts (HDD Hibernation)
British Thermal Unit 129.42 BTU/hr (Access)
45.83 BTU/hr (HDD Hibernation)		 162.83 BTU/hr (Access)
57.02 BTU/hr (HDD Hibernation)		 234.35 BTU/hr (Access)
118.67 BTU/hr (HDD Hibernation)
Notes
  • For more information on how power consumption is measured, refer to this article.
  • Noise testing was conducted with the Synology system fully installed with Synology SATA HDDs and in an idle stae. Two G.R.A.S. Type 40AE microphones are placed at a 1 m distance from the front and rear of the device. Background noise: 16.49-17.51 dB(A); Temperature: 24.25-25.75˚C; Humidity: 58.2-61.8%
  • For more information on how power consumption is measured, refer to this article.
  • Noise testing was conducted with the Synology system fully installed with Synology SATA HDDs and in an idle stae. Two G.R.A.S. Type 40AE microphones are placed at a 1 m distance from the front and rear of the device. Background noise: 16.49-17.51 dB(A); Temperature: 24.25-25.75˚C; Humidity: 58.2-61.8%
  • Power consumption is measured when it is fully loaded with Western Digital 1TB WD10EFRX hard drive(s).
  • Noise Level Testing Environment: Fully loaded with Seagate 2TB ST2000VN000 hard drive(s) in the idle state. Two G.R.A.S. Type 40AE microphones, each set up 1 meter away from the Synology NAS at the front and rear. Background noise: 16.49-17.51 dB(A); Temperature: 24.25-25.75˚C; Humidity: 58.2-61.8%
Temperature
Operating Temperature 0°C to 35°C (32°F to 95°F) 0°C to 35°C (32°F to 95°F) 5°C to 35°C (40°F to 95°F)
Storage Temperature -20°C to 60°C (-5°F to 140°F) -20°C to 60°C (-5°F to 140°F) -20°C to 60°C (-5°F to 140°F)
Relative Humidity 5% to 95% RH 5% to 95% RH 5% to 95% RH
Certification
  • FCC
  • CE
  • BSMI
  • VCCI
  • RCM
  • UKCA
  • EAC
  • CCC
  • KC
  • FCC
  • CE
  • BSMI
  • VCCI
  • RCM
  • UKCA
  • EAC
  • CCC
  • KC
  • UL
  • FCC
  • CE
  • BSMI
  • VCCI
  • RCM
  • EAC
  • CCC
  • KC
Warranty 3-year hardware warranty, extendable to 5 years with EW201 or Extended Warranty Plus 3-year hardware warranty, extendable to 5 years with EW202 or Extended Warranty Plus 5 Years
Notes
  • The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more)
  • Extended Warranty Plus is only available in Europe and North America. EW201/EW202 is only available in Asia, Africa, and Oceania. For exact availability information please visit their respective websites.
  • The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more)
  • Extended Warranty Plus is only available in Europe and North America. EW201/EW202 is only available in Asia, Africa, and Oceania. For exact availability information please visit their respective websites.
 The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more)
Environment RoHS Compliant RoHS Compliant RoHS Compliant
Packaging Content
  • Main Unit X 1
  • Accessory Pack X 1
  • AC Power Cord X 1
  • Quick Installation Guide X 1
  • Main Unit X 1
  • Accessory Pack X 1
  • AC Power Cord X 1
  • Quick Installation Guide X 1
  • Main Unit X 1
  • Accessory Pack X 1
  • AC Power Cord X 2
  • Quick Installation Guide X 1
Optional Accessories
Notes Certain items may not be available in your location. Please contact your local distributors for more information.
  • Certain items may not be available in your location. Please contact your local distributors for more information.
  • Upgrade to DSM 7.2-64551 or later before installing the M2D18.
  • All memory modules will operate at the maximum frequency specified by the CPU manufacturer.
  • Certain items may not be available in your location. Please contact your local distributors for more information.
  • All memory modules will operate at the maximum frequency specified by the CPU manufacturer.
Software Specs
DSM Specifications
Storage Management
Maximum Single Volume Size 108 TB 108 TB
  • 1 PB (64 GB memory required, for RAID 6 groups only)
  • 200 TB (32 GB memory required)
  • 108 TB
Maximum Internal Volume Number 64 64 256
SSD Read/Write Cache (Determining cache size)
SSD TRIM
RAID Group
Supported RAID Type
  • Synology Hybrid RAID
  • Basic
  • JBOD
  • RAID 0
  • RAID 1
  • RAID 5
  • RAID 6
  • RAID 10
  • Synology Hybrid RAID
  • Basic
  • JBOD
  • RAID 0
  • RAID 1
  • RAID 5
  • RAID 6
  • RAID 10
  • RAID F1
  • Basic
  • JBOD
  • RAID 0
  • RAID 1
  • RAID 5
  • RAID 6
  • RAID 10
RAID Migration
  • Basic to RAID 1
  • Basic to RAID 5
  • RAID 1 to RAID 5
  • RAID 5 to RAID 6
  • Basic to RAID 1
  • Basic to RAID 5
  • RAID 1 to RAID 5
  • RAID 5 to RAID 6
  • Basic to RAID 1
  • Basic to RAID 5
  • RAID 1 to RAID 5
  • RAID 5 to RAID 6
Volume Expansion with Larger HDDs
  • Synology Hybrid RAID
  • RAID 1
  • RAID 5
  • RAID 6
  • RAID 10
  • Synology Hybrid RAID
  • RAID 1
  • RAID 5
  • RAID 6
  • RAID 10
  • RAID F1
  • RAID 1
  • RAID 5
  • RAID 6
  • RAID 10
Volume Expansion by Adding a HDD
  • Synology Hybrid RAID
  • JBOD
  • RAID 5
  • Synology Hybrid RAID
  • JBOD
  • RAID 5
  • RAID 6 (with Expansion Unit)
  • RAID F1
  • JBOD
  • RAID 5
  • RAID 6 (with Expansion Unit)
Global Hot Spare Supported RAID Type
  • Synology Hybrid RAID
  • RAID 1
  • RAID 5
  • Synology Hybrid RAID
  • RAID 1
  • RAID 5
  • RAID 6 (with Expansion Unit)
  • RAID 10 (with Expansion Unit)
  • RAID F1
  • RAID 1
  • RAID 5
  • RAID 6 (with Expansion Unit)
  • RAID 10 (with Expansion Unit)
Notes
  • Usable capacity for each volume will be lower than the maximum volume size and is dependent on the filesystem and the amount of system metadata stored.
  • Actual maximum storage pool and volume sizes depend on drive sizes used, the number of drive bays available, and the RAID configuration.
  • Usable capacity for each volume will be lower than the maximum volume size and is dependent on the filesystem and the amount of system metadata stored.
  • Each internal volume (may consist of multiple drives) is expandable up to 108TB.
  • Usable capacity for each volume will be lower than the maximum volume size and is dependent on the filesystem and the amount of system metadata stored.
  • When Peta Volume is enabled, validated services and packages are required. Please refer to this article for more information on limitations.
  • Actual maximum storage pool and volume sizes depend on drive sizes used, the number of drive bays available, and the RAID configuration.
  • Volumes over 108 TB require 32 GB of memory or more.
File System
Internal Drives
  • Btrfs
  • ext4
  • Btrfs
  • ext4
  • Btrfs
  • ext4
External Drives
  • Btrfs
  • ext4
  • ext3
  • FAT
  • NTFS
  • HFS+
  • exFAT
  • Btrfs
  • ext4
  • ext3
  • FAT
  • NTFS
  • HFS+
  • exFAT
  • Btrfs
  • ext4
  • ext3
  • FAT
  • NTFS
  • HFS+
  • exFAT
Notes exFAT Access can be installed for free from Package Center in DSM 7.0. In DSM 6.2 or earlier versions, exFAT Access needs to be purchased in Package Center.
File Services
File Protocol
  • SMB
  • AFP
  • NFS
  • FTP
  • WebDAV
  • Rsync
  • SMB
  • AFP
  • NFS
  • FTP
  • WebDAV
  • Rsync
  • SMB
  • AFP
  • NFS
  • FTP
  • WebDAV
  • Rsync
Maximum Concurrent SMB/AFP/FTP Connections 500 500 2,000
Maximum Concurrent SMB/AFP/FTP Connections (with RAM expansion) 2,000 10,000
Windows Access Control List (ACL) Integration
NFS Kerberos Authentication
Notes The testing standard was based on the maximum number of concurrent connections supported by this model. During the testing, 25% of the connections were used to transfer files concurrently. The transfer process guaranteed that the connections were not interrupted; the minimum transfer speed was not guaranteed.
  • Regarding data concerning tests with RAM expansion, all memory slots are installed with the maximum capacity of supported RAM.
  • The testing standard was based on the maximum number of concurrent connections supported by this model. During the testing, 25% of the connections were used to transfer files concurrently. The transfer process guaranteed that the connections were not interrupted; the minimum transfer speed was not guaranteed.
  • Regarding data concerning tests with RAM expansion, all memory slots are installed with the maximum capacity of supported RAM.
  • During testing, the maximum number of SSDs supported by this model is installed in a RAID 5 configuration.
  • The testing standard was based on the maximum number of concurrent connections supported by this model. During the testing, 25% of the connections were used to transfer files concurrently. The transfer process guaranteed that the connections were not interrupted; the minimum transfer speed was not guaranteed.
Account & Shared Folder
Maximum Local User Accounts 2,048 2,048 16,000
Maximum Local Groups 256 256 512
Maximum Shared Folder 512 512 512
Maximum Shared Folder Sync Tasks 8 16 32
Hybrid Share
Maximum Hybrid Share Folders 10 10 15
Hyper Backup
Folder and Package Backup
Entire System Backup
Notes Full-system backup requires DSM 7.2 or later. Full-system backup requires DSM 7.2 or later. Full-system backup requires DSM 7.2 or later.
High Availability
Synology High Availability
Log Center
Syslog Events per Second 800 800 3,000
Virtualization
VMware ESXi 6.5 and VAAI
Windows Server 2016
Windows Server 2019
Windows Server 2022
Citrix Ready
OpenStack
General Specifications
Supported Protocols SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, Fibre Channel, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV
Supported Browsers
  • Chrome
  • Firefox
  • Edge
  • Safari
  • Chrome
  • Firefox
  • Edge
  • Safari
  • Chrome
  • Firefox
  • Edge
  • Safari
Supported Language English, Deutsch, Français, Italiano, Español, Dansk, Norsk, Svenska, Nederlands, Русский, Polski, Magyar, Português do Brasil, Português Europeu, Türkçe, Český, ภาษาไทย, 日本語, 한국어, 繁體中文, 简体中文 English, Deutsch, Français, Italiano, Español, Dansk, Norsk, Svenska, Nederlands, Русский, Polski, Magyar, Português do Brasil, Português Europeu, Türkçe, Český, ภาษาไทย, 日本語, 한국어, 繁體中文, 简体中文 English, Deutsch, Français, Italiano, Español, Dansk, Norsk, Svenska, Nederlands, Русский, Polski, Magyar, Português do Brasil, Português Europeu, Türkçe, Český, ภาษาไทย, 日本語, 한국어, 繁體中文, 简体中文
Notes For an updated list of supported browser versions, check the DSM Technical Specifications. For an updated list of supported browser versions, check the DSM Technical Specifications. For an updated list of supported browser versions, check the DSM Technical Specifications.
Add-on Packages view the complete package list
Central Management System
Synology Chat
Suggested Users 100 150 400
Notes
  • Measured with simulated users, each with an average record of 20,000 messages, emojis, or stickers. The required server response time is below ten seconds.
  • Models with expandable memory are tested with their maximum supported memory.
  • Measured with simulated users, each with an average record of 20,000 messages, emojis, or stickers. The required server response time is below ten seconds.
  • Models with expandable memory are tested with their maximum supported memory.
 Models with expandable memory are tested with their maximum supported memory.
Download Station
Maximum Concurrent Download Tasks 80 80 80
SAN Manager
Maximum iSCSI Target Number 128 128 256
Maximum LUN 256 256 512
LUN Clone/Snapshot, Windows ODX
Notes iSCSI Manager has been renamed to SAN Manager in DSM 7.0.
Synology MailPlus / MailPlus Server
Free Email Accounts 5 (Additional accounts require purchase of licenses) 5 (Additional accounts require purchase of licenses)
Suggested Users 750 5,000
Maximum Server Performance 1,484,000 emails per day, approx. 45GB 3,363,000 emails per day, approx. 102.6 GB
Notes
  • Suggested users is derived from testing in an environment with 20% heavy users (each with 20,000 pre-populated emails and receiving 240 emails per day) and 80% light users (each receiving an average of 20 emails per day). Learn more
  • Models with more than 4 bays were installed with two SSDs for SSD cache.
  • Models with expandable memory are tested with their maximum supported memory.
  • The performance of the mail system will slightly decrease in high-availability mode due to data synchronization between the two servers.
  • Functions that were enabled in all of the tests above: anti-spam, anti-virus, DNSBL, greylist, content scan, full-text search (English only).
  • Suggested users is derived from testing in an environment with 20% heavy users (each with 20,000 pre-populated emails and receiving 240 emails per day) and 80% light users (each receiving an average of 20 emails per day). Learn more
  • Models with more than 4 bays were installed with two SSDs for SSD cache.
  • Models with expandable memory are tested with their maximum supported memory.
  • The performance of the mail system will slightly decrease in high-availability mode due to data synchronization between the two servers.
  • Functions that were enabled in all of the tests above: anti-spam, anti-virus, DNSBL, greylist, content scan, full-text search (English only).
Media Server
DLNA Compliance
Synology Photos
Facial Recognition
Object Recognition
Notes Object recognition requires an upgrade of memory capacity to a minimum of 4 GB.
Snapshot Replication
Maximum Snapshots per Shared Folder 1,024 1,024 1,024
Maximum of System Snapshots 65,536 65,536 65,536
Surveillance Station
Default Licenses 2 (Additional cameras require purchase of licenses) 2 (Additional cameras require purchase of licenses) 2 (Additional cameras require purchase of licenses)
Suggested Maximum IP Cameras and Total FPS (H.264)
  • 720p: 40 channels, 1200 FPS
  • 1080p: 40 channels, 800 FPS
  • 3M: 35 channels, 350 FPS
  • 5M: 28 channels, 280 FPS
  • 4K: 17 channels, 170 FPS
  • 720p: 40 channels, 1200 FPS
  • 1080p: 40 channels, 800 FPS
  • 3M: 35 channels, 350 FPS
  • 5M: 28 channels, 280 FPS
  • 4K: 17 channels, 170 FPS
  • 720p: 75 channels, 2250 FPS
  • 1080p: 75 channels, 1050 FPS
  • 3M: 60 channels, 600 FPS
  • 5M: 40 channels, 400 FPS
  • 4K: 28 channels, 280 FPS
Suggested Maximum IP Cameras and Total FPS (H.265)
  • 720p: 40 channels, 1200 FPS
  • 1080p: 40 channels, 1200 FPS
  • 3M: 40 channels, 600 FPS
  • 5M: 40 channels, 480 FPS
  • 4K: 20 channels, 200 FPS
  • 720p: 40 channels, 1200 FPS
  • 1080p: 40 channels, 1200 FPS
  • 3M: 40 channels, 600 FPS
  • 5M: 40 channels, 480 FPS
  • 4K: 20 channels, 200 FPS
  • 720p: 75 channels, 2250 FPS
  • 1080p: 75 channels, 2250 FPS
  • 3M: 75 channels, 1125 FPS
  • 5M: 70 channels, 700 FPS
  • 4K: 49 channels, 490 FPS
Notes
  • Performance figures are obtained from testing conducted with the device fully populated with drives, with their default memory configuration, and under a continuous recording setup. Actual system capabilities may vary based on configuration, drive performance, enabled features, and the presence of additional workloads.
  • Use NVR Selector to quickly find a suitable model based on your requirements.
  • The maximum number of camera stream outputs is 2 times the suggested maximum number of IP cameras.
  • Performance figures are obtained from testing conducted with the device fully populated with drives, with their default memory configuration, and under a continuous recording setup. Actual system capabilities may vary based on configuration, drive performance, enabled features, and the presence of additional workloads.
  • Use NVR Selector to quickly find a suitable model based on your requirements.
  • The maximum number of camera stream outputs is 2 times the suggested maximum number of IP cameras.
  • Performance figures are obtained from testing conducted with the device fully populated with drives, with their default memory configuration, and under a continuous recording setup. Actual system capabilities may vary based on configuration, drive performance, enabled features, and the presence of additional workloads.
  • Use NVR Selector to quickly find a suitable model based on your requirements.
  • The maximum number of camera stream outputs is 2 times the suggested maximum number of IP cameras.
Synology Drive
Recommended Number of Concurrent Sync Clients 350 (the number of connections that can be maintained when the recommended number of hosted files was reached) 550 (the number of connections that can be maintained when the recommended number of hosted files was reached) 1,800 (the number of connections that can be maintained when the recommended number of hosted files was reached)
Recommended Number of Hosted Files 5,000,000 (applies to files indexed or hosted by Synology Drive. For file access through other standard protocols, refer to the File Services section above) 50,000,000 (applies to files indexed or hosted by Synology Drive. For file access through other standard protocols, refer to the File Services section above) 50,000,000 (applies to files indexed or hosted by Synology Drive. For file access through other standard protocols, refer to the File Services section above)
Notes
  • Exceeding the recommended numbers above will not block application operations, but may result in longer response time.
  • Utilizing SSD cache can significantly improve performance.
  • Btrfs file system and non-encrypted shared folders were used during the aforementioned testing.
  • Exceeding the recommended numbers above will not block application operations, but may result in longer response time.
  • Utilizing SSD cache can significantly improve performance.
  • Models with expandable memory are tested with their maximum supported memory.
  • Btrfs file system and non-encrypted shared folders were used during the aforementioned testing.
  • Exceeding the recommended numbers above will not block application operations, but may result in longer response time.
  • Utilizing SSD cache can significantly improve performance.
  • Models with expandable memory are tested with their maximum supported memory.
  • Btrfs file system and non-encrypted shared folders were used during the aforementioned testing.
Synology Office
Suggested Users 3,000 4,500 7,000
Notes
  • Suggested users is derived from testing in an environment with 60% idle users (each logging in and viewing documents) and 40% active users (each executing random actions at intervals of 20 to 40 seconds) operating within documents, each document having 30 users. Learn more
  • Client performance may affect maximum simultaneous editing users. Client PCs used for testing: Intel Core i3-3220 / 8GB RAM
  • Suggested users is derived from testing in an environment with 60% idle users (each logging in and viewing documents) and 40% active users (each executing random actions at intervals of 20 to 40 seconds) operating within documents, each document having 30 users. Learn more
  • Models with expandable memory are tested with their maximum supported memory.
  • Client performance may affect maximum simultaneous editing users. Client PCs used for testing: Intel Core i3-3220 / 8GB RAM
  • Suggested users is derived from testing in an environment with 60% idle users (each logging in and viewing documents) and 40% active users (each executing random actions at intervals of 20 to 40 seconds) operating within documents, each document having 30 users. Learn more
  • Models with expandable memory are tested with their maximum supported memory.
  • Client performance may affect maximum simultaneous editing users. Client PCs used for testing: Intel Core i3-3220 / 8GB RAM
Virtual Machine Manager
Recommended Virtual Machine Instances 8 (Learn more) 8 (Learn more)
Recommended Virtual DSM Number (Licenses required) 8 (including 1 Free License) 8 (including 1 Free License)
Notes The specifications vary depending on system configuration and memory size. The specifications vary depending on system configuration and memory size.
VPN Server
Maximum Connections 40 40 60
Hardware Specs
Hardware Specifications
CPU
CPU Model
RS422+ AMD Ryzen R1600
RS822+ AMD Ryzen V1500B
RS1619xs+ Intel Xeon D-1527
CPU Quantity
RS422+ 1
RS822+ 1
RS1619xs+ 1
CPU Core
RS422+ 2
RS822+ 4
RS1619xs+ 4
CPU Architecture
RS422+ 64-bit
RS822+ 64-bit
RS1619xs+ 64-bit
CPU Frequency
RS422+ 2.6 (base) / 3.1 (turbo) GHz
RS822+ 2.2 GHz
RS1619xs+ 2.2 (base) / 2.7 (turbo) GHz
Hardware Encryption Engine
RS422+
RS822+
RS1619xs+
Memory
System Memory
RS422+ 2 GB DDR4 ECC
RS822+ 2 GB DDR4 ECC SODIMM
RS1619xs+ 8 GB DDR4 ECC UDIMM
Memory Module Pre-installed
RS422+
RS822+ 2 GB (2 GB x 1)
RS1619xs+ 8 GB (8 GB x 1)
Total Memory Slots
RS422+
RS822+ 2
RS1619xs+ 4
Maximum Memory Capacity
RS422+
RS822+ 32 GB (16 GB x 2)
RS1619xs+ 64 GB (16 GB x 4)
Notes
RS422+ Synology reserves the right to replace memory modules with the same or higher frequency based on supplier's product life cycle status. Rest assured that the compatibility and stability have been strictly verified with the same benchmark to ensure identical performance.
RS822+
  • Synology reserves the right to replace memory modules with the same or higher frequency based on supplier's product life cycle status. Rest assured that the compatibility and stability have been strictly verified with the same benchmark to ensure identical performance.
  • Please select Synology memory modules for optimum compatibility and reliability. Synology will not provide complete product warranty or technical support if non-Synology memory modules are used for memory expansion.
  • For more information about the recommended memory configurations, please check the Hardware Installation Guide of your Synology product.
RS1619xs+
  • Synology reserves the right to replace memory modules with the same or higher frequency based on supplier's product life cycle status. Rest assured that the compatibility and stability have been strictly verified with the same benchmark to ensure identical performance.
  • Please select Synology memory modules for optimum compatibility and reliability. Synology will not provide complete product warranty or technical support if non-Synology memory modules are used for memory expansion.
  • For more information on the recommended memory configurations, visit here.
Storage
Drive Bays
RS422+ 4
RS822+ 4
RS1619xs+ 4
Maximum Drive Bays with Expansion Unit
RS422+
RS822+ 8 (RX418 x 1)
RS1619xs+ 16 (RX1217 x 1)
M.2 Drive Slots
RS422+
RS822+
RS1619xs+ 2 (NVMe & SATA)
Compatible Drive Type* (See all supported drives)
RS422+
  • 3.5" SATA HDD
  • 2.5" SATA SSD
RS822+
  • 3.5" SATA HDD
  • 2.5" SATA SSD
RS1619xs+
  • 3.5" SATA HDD
  • 2.5" SATA HDD
  • 2.5" SATA SSD
  • M.2 2280 NVMe & SATA SSD
Hot Swappable Drive*
RS422+
RS822+
RS1619xs+
Notes
RS422+ "Compatible drive type" indicates drives that have been tested to be compatible with Synology products. This term does not indicate the maximum connection speed of each drive bay.
RS822+
  • "Compatible drive type" indicates drives that have been tested to be compatible with Synology products. This term does not indicate the maximum connection speed of each drive bay.
  • The maximum raw capacity is not limited by the maximum single volume size. Synology NAS models may utilize capacities over the maximum single volume size as long as each volume created is below the limit. (Learn more)
RS1619xs+
  • The hot swappable drive feature is not supported by M.2 SSD slots.
  • "Compatible drive type" indicates drives that have been tested to be compatible with Synology products. This term does not indicate the maximum connection speed of each drive bay.
External Ports
RJ-45 1GbE LAN Port
RS422+ 2
RS822+ 4
RS1619xs+ 4
USB 3.2 Gen 1 Port*
RS422+ 1
RS822+ 2
RS1619xs+ 2
Expansion Port
RS422+
RS822+ 1
RS1619xs+ 1
Expansion Port Type
RS422+
RS822+ eSATA
RS1619xs+ Infiniband
Notes
RS422+
  • This device's 1GbE LAN ports have a maximum transmission unit (MTU) size of 1,500 bytes.
  • The USB 3.0 standard was renamed to USB 3.2 Gen 1 by the USB Implementers Forum (USB-IF) in 2019.
RS822+
  • This device's 1GbE LAN ports have a maximum transmission unit (MTU) size of 1,500 bytes.
  • The USB 3.0 standard was renamed to USB 3.2 Gen 1 by the USB Implementers Forum (USB-IF) in 2019.
RS1619xs+ The USB 3.0 standard was renamed to USB 3.2 Gen 1 by the USB Implementers Forum (USB-IF) in 2019.
PCIe
PCIe Expansion
RS422+ 1 x Gen3 x2 network upgrade slot
RS822+ 1 x Gen3 x8 slot (x4 link)
RS1619xs+ 1 x Gen3 x8 slot (x8 link)
Appearance
Form Factor (RU)
RS422+ 1U
RS822+ 1U
RS1619xs+ 1U
Size (Height x Width x Depth)
RS422+ 44 mm x 478 mm x 327.5 mm
RS822+ 44 mm x 480 mm x 492.6 mm
RS1619xs+ 44 mm x 480 mm x 518.6 mm
Weight
RS422+ 4.38 kg
RS822+ 6.4 kg
RS1619xs+ 8.16 kg
Rack Installation Support*
RS422+
  • 4-post 19" rack (Synology Rail Kit - RKM114/RKS-02)
  • 2-post 19" rack (direct mounting)
RS822+ 4-post 19" rack (Synology Rail Kit - RKM114/RKS-02)
RS1619xs+ 4-post 19" rack (Synology Rail Kit - RKM114/RKS-02)
Notes
RS422+ The rail kit is sold separately
RS822+ The rail kit is sold separately
RS1619xs+ The rail kit is sold separately
Others
System Fan
RS422+ 40 mm x 40 mm x 3 pcs
RS822+ 40 mm x 40 mm x 3 pcs
RS1619xs+ 40 mm x 40 mm x 2 pcs
Fan Speed Mode
RS422+
  • Full-Speed Mode
  • Cool Mode
  • Quiet Mode
RS822+
  • Full-Speed Mode
  • Cool Mode
  • Quiet Mode
RS1619xs+
  • Full-Speed Mode
  • Cool Mode
  • Quiet Mode
Power Recovery
RS422+
RS822+
RS1619xs+
Noise Level*
RS422+ 28.5 dB(A)
RS822+ 27.4 dB(A)
RS1619xs+ 39.3 dB(A)
Scheduled Power On / Off
RS422+
RS822+
RS1619xs+
Wake on LAN / WAN
RS422+
RS822+
RS1619xs+
Power Supply Unit / Adapter
RS422+ 100 watts
RS822+ 150 watts
RS1619xs+ 150 watts
Redundant Power Supply
RS422+
RS822+
RS1619xs+
AC Input Power Voltage
RS422+ 100V to 240V AC
RS822+ 100 V to 240 V AC
RS1619xs+ 100V to 240V AC
Power Frequency
RS422+ 50/60 Hz, Single Phase
RS822+ 50/60 Hz, Single Phase
RS1619xs+ 50/60 Hz, Single Phase
Power Consumption
RS422+ 37.93 watts (Access)
13.43 watts (HDD Hibernation)
RS822+ 47.69 watts (Access)
16.7 watts (HDD Hibernation)
RS1619xs+ 68.68 watts (Access)
34.78 watts (HDD Hibernation)
British Thermal Unit
RS422+ 129.42 BTU/hr (Access)
45.83 BTU/hr (HDD Hibernation)
RS822+ 162.83 BTU/hr (Access)
57.02 BTU/hr (HDD Hibernation)
RS1619xs+ 234.35 BTU/hr (Access)
118.67 BTU/hr (HDD Hibernation)
Notes
RS422+
  • For more information on how power consumption is measured, refer to this article.
  • Noise testing was conducted with the Synology system fully installed with Synology SATA HDDs and in an idle stae. Two G.R.A.S. Type 40AE microphones are placed at a 1 m distance from the front and rear of the device. Background noise: 16.49-17.51 dB(A); Temperature: 24.25-25.75˚C; Humidity: 58.2-61.8%
RS822+
  • For more information on how power consumption is measured, refer to this article.
  • Noise testing was conducted with the Synology system fully installed with Synology SATA HDDs and in an idle stae. Two G.R.A.S. Type 40AE microphones are placed at a 1 m distance from the front and rear of the device. Background noise: 16.49-17.51 dB(A); Temperature: 24.25-25.75˚C; Humidity: 58.2-61.8%
RS1619xs+
  • Power consumption is measured when it is fully loaded with Western Digital 1TB WD10EFRX hard drive(s).
  • Noise Level Testing Environment: Fully loaded with Seagate 2TB ST2000VN000 hard drive(s) in the idle state. Two G.R.A.S. Type 40AE microphones, each set up 1 meter away from the Synology NAS at the front and rear. Background noise: 16.49-17.51 dB(A); Temperature: 24.25-25.75˚C; Humidity: 58.2-61.8%
Temperature
Operating Temperature
RS422+ 0°C to 35°C (32°F to 95°F)
RS822+ 0°C to 35°C (32°F to 95°F)
RS1619xs+ 5°C to 35°C (40°F to 95°F)
Storage Temperature
RS422+ -20°C to 60°C (-5°F to 140°F)
RS822+ -20°C to 60°C (-5°F to 140°F)
RS1619xs+ -20°C to 60°C (-5°F to 140°F)
Relative Humidity
RS422+ 5% to 95% RH
RS822+ 5% to 95% RH
RS1619xs+ 5% to 95% RH
Certification
RS422+
  • FCC
  • CE
  • BSMI
  • VCCI
  • RCM
  • UKCA
  • EAC
  • CCC
  • KC
RS822+
  • FCC
  • CE
  • BSMI
  • VCCI
  • RCM
  • UKCA
  • EAC
  • CCC
  • KC
  • UL
RS1619xs+
  • FCC
  • CE
  • BSMI
  • VCCI
  • RCM
  • EAC
  • CCC
  • KC
Warranty
RS422+ 3-year hardware warranty, extendable to 5 years with EW201 or Extended Warranty Plus
RS822+ 3-year hardware warranty, extendable to 5 years with EW202 or Extended Warranty Plus
RS1619xs+ 5 Years
Notes
RS422+
  • The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more)
  • Extended Warranty Plus is only available in Europe and North America. EW201/EW202 is only available in Asia, Africa, and Oceania. For exact availability information please visit their respective websites.
RS822+
  • The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more)
  • Extended Warranty Plus is only available in Europe and North America. EW201/EW202 is only available in Asia, Africa, and Oceania. For exact availability information please visit their respective websites.
RS1619xs+ The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more)
Environment
RS422+ RoHS Compliant
RS822+ RoHS Compliant
RS1619xs+ RoHS Compliant
Packaging Content
RS422+
  • Main Unit X 1
  • Accessory Pack X 1
  • AC Power Cord X 1
  • Quick Installation Guide X 1
RS822+
  • Main Unit X 1
  • Accessory Pack X 1
  • AC Power Cord X 1
  • Quick Installation Guide X 1
RS1619xs+
  • Main Unit X 1
  • Accessory Pack X 1
  • AC Power Cord X 2
  • Quick Installation Guide X 1
Optional Accessories
RS422+
RS822+
RS1619xs+
Notes
RS422+ Certain items may not be available in your location. Please contact your local distributors for more information.
RS822+
  • Certain items may not be available in your location. Please contact your local distributors for more information.
  • Upgrade to DSM 7.2-64551 or later before installing the M2D18.
  • All memory modules will operate at the maximum frequency specified by the CPU manufacturer.
RS1619xs+
  • Certain items may not be available in your location. Please contact your local distributors for more information.
  • All memory modules will operate at the maximum frequency specified by the CPU manufacturer.
Software Specs
DSM Specifications
Storage Management
Maximum Single Volume Size
RS422+ 108 TB
RS822+ 108 TB
RS1619xs+
  • 1 PB (64 GB memory required, for RAID 6 groups only)
  • 200 TB (32 GB memory required)
  • 108 TB
Maximum Internal Volume Number
RS422+ 64
RS822+ 64
RS1619xs+ 256
SSD Read/Write Cache (Determining cache size)
RS422+
RS822+
RS1619xs+
SSD TRIM
RS422+
RS822+
RS1619xs+
RAID Group
RS422+
RS822+
RS1619xs+
Supported RAID Type
RS422+
  • Synology Hybrid RAID
  • Basic
  • JBOD
  • RAID 0
  • RAID 1
  • RAID 5
  • RAID 6
  • RAID 10
RS822+
  • Synology Hybrid RAID
  • Basic
  • JBOD
  • RAID 0
  • RAID 1
  • RAID 5
  • RAID 6
  • RAID 10
RS1619xs+
  • RAID F1
  • Basic
  • JBOD
  • RAID 0
  • RAID 1
  • RAID 5
  • RAID 6
  • RAID 10
RAID Migration
RS422+
  • Basic to RAID 1
  • Basic to RAID 5
  • RAID 1 to RAID 5
  • RAID 5 to RAID 6
RS822+
  • Basic to RAID 1
  • Basic to RAID 5
  • RAID 1 to RAID 5
  • RAID 5 to RAID 6
RS1619xs+
  • Basic to RAID 1
  • Basic to RAID 5
  • RAID 1 to RAID 5
  • RAID 5 to RAID 6
Volume Expansion with Larger HDDs
RS422+
  • Synology Hybrid RAID
  • RAID 1
  • RAID 5
  • RAID 6
  • RAID 10
RS822+
  • Synology Hybrid RAID
  • RAID 1
  • RAID 5
  • RAID 6
  • RAID 10
RS1619xs+
  • RAID F1
  • RAID 1
  • RAID 5
  • RAID 6
  • RAID 10
Volume Expansion by Adding a HDD
RS422+
  • Synology Hybrid RAID
  • JBOD
  • RAID 5
RS822+
  • Synology Hybrid RAID
  • JBOD
  • RAID 5
  • RAID 6 (with Expansion Unit)
RS1619xs+
  • RAID F1
  • JBOD
  • RAID 5
  • RAID 6 (with Expansion Unit)
Global Hot Spare Supported RAID Type
RS422+
  • Synology Hybrid RAID
  • RAID 1
  • RAID 5
RS822+
  • Synology Hybrid RAID
  • RAID 1
  • RAID 5
  • RAID 6 (with Expansion Unit)
  • RAID 10 (with Expansion Unit)
RS1619xs+
  • RAID F1
  • RAID 1
  • RAID 5
  • RAID 6 (with Expansion Unit)
  • RAID 10 (with Expansion Unit)
Notes
RS422+
  • Usable capacity for each volume will be lower than the maximum volume size and is dependent on the filesystem and the amount of system metadata stored.
  • Actual maximum storage pool and volume sizes depend on drive sizes used, the number of drive bays available, and the RAID configuration.
RS822+
  • Usable capacity for each volume will be lower than the maximum volume size and is dependent on the filesystem and the amount of system metadata stored.
  • Each internal volume (may consist of multiple drives) is expandable up to 108TB.
RS1619xs+
  • Usable capacity for each volume will be lower than the maximum volume size and is dependent on the filesystem and the amount of system metadata stored.
  • When Peta Volume is enabled, validated services and packages are required. Please refer to this article for more information on limitations.
  • Actual maximum storage pool and volume sizes depend on drive sizes used, the number of drive bays available, and the RAID configuration.
  • Volumes over 108 TB require 32 GB of memory or more.
File System
Internal Drives
RS422+
  • Btrfs
  • ext4
RS822+
  • Btrfs
  • ext4
RS1619xs+
  • Btrfs
  • ext4
External Drives
RS422+
  • Btrfs
  • ext4
  • ext3
  • FAT
  • NTFS
  • HFS+
  • exFAT
RS822+
  • Btrfs
  • ext4
  • ext3
  • FAT
  • NTFS
  • HFS+
  • exFAT
RS1619xs+
  • Btrfs
  • ext4
  • ext3
  • FAT
  • NTFS
  • HFS+
  • exFAT
Notes
RS422+
RS822+
RS1619xs+ exFAT Access can be installed for free from Package Center in DSM 7.0. In DSM 6.2 or earlier versions, exFAT Access needs to be purchased in Package Center.
File Services
File Protocol
RS422+
  • SMB
  • AFP
  • NFS
  • FTP
  • WebDAV
  • Rsync
RS822+
  • SMB
  • AFP
  • NFS
  • FTP
  • WebDAV
  • Rsync
RS1619xs+
  • SMB
  • AFP
  • NFS
  • FTP
  • WebDAV
  • Rsync
Maximum Concurrent SMB/AFP/FTP Connections
RS422+ 500
RS822+ 500
RS1619xs+ 2,000
Maximum Concurrent SMB/AFP/FTP Connections (with RAM expansion)
RS422+
RS822+ 2,000
RS1619xs+ 10,000
Windows Access Control List (ACL) Integration
RS422+
RS822+
RS1619xs+
NFS Kerberos Authentication
RS422+
RS822+
RS1619xs+
Notes
RS422+ The testing standard was based on the maximum number of concurrent connections supported by this model. During the testing, 25% of the connections were used to transfer files concurrently. The transfer process guaranteed that the connections were not interrupted; the minimum transfer speed was not guaranteed.
RS822+
  • Regarding data concerning tests with RAM expansion, all memory slots are installed with the maximum capacity of supported RAM.
  • The testing standard was based on the maximum number of concurrent connections supported by this model. During the testing, 25% of the connections were used to transfer files concurrently. The transfer process guaranteed that the connections were not interrupted; the minimum transfer speed was not guaranteed.
RS1619xs+
  • Regarding data concerning tests with RAM expansion, all memory slots are installed with the maximum capacity of supported RAM.
  • During testing, the maximum number of SSDs supported by this model is installed in a RAID 5 configuration.
  • The testing standard was based on the maximum number of concurrent connections supported by this model. During the testing, 25% of the connections were used to transfer files concurrently. The transfer process guaranteed that the connections were not interrupted; the minimum transfer speed was not guaranteed.
Account & Shared Folder
Maximum Local User Accounts
RS422+ 2,048
RS822+ 2,048
RS1619xs+ 16,000
Maximum Local Groups
RS422+ 256
RS822+ 256
RS1619xs+ 512
Maximum Shared Folder
RS422+ 512
RS822+ 512
RS1619xs+ 512
Maximum Shared Folder Sync Tasks
RS422+ 8
RS822+ 16
RS1619xs+ 32
Hybrid Share
Maximum Hybrid Share Folders
RS422+ 10
RS822+ 10
RS1619xs+ 15
Hyper Backup
Folder and Package Backup
RS422+
RS822+
RS1619xs+
Entire System Backup
RS422+
RS822+
RS1619xs+
Notes
RS422+ Full-system backup requires DSM 7.2 or later.
RS822+ Full-system backup requires DSM 7.2 or later.
RS1619xs+ Full-system backup requires DSM 7.2 or later.
High Availability
Synology High Availability
RS422+
RS822+
RS1619xs+
Log Center
RS422+
RS822+
RS1619xs+
Syslog Events per Second
RS422+ 800
RS822+ 800
RS1619xs+ 3,000
Virtualization
VMware ESXi 6.5 and VAAI
RS422+
RS822+
RS1619xs+
Windows Server 2016
RS422+
RS822+
RS1619xs+
Windows Server 2019
RS422+
RS822+
RS1619xs+
Windows Server 2022
RS422+
RS822+
RS1619xs+
Citrix Ready
RS422+
RS822+
RS1619xs+
OpenStack
RS422+
RS822+
RS1619xs+
General Specifications
Supported Protocols
RS422+ SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV
RS822+ SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV
RS1619xs+ SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, Fibre Channel, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV
Supported Browsers
RS422+
  • Chrome
  • Firefox
  • Edge
  • Safari
RS822+
  • Chrome
  • Firefox
  • Edge
  • Safari
RS1619xs+
  • Chrome
  • Firefox
  • Edge
  • Safari
Supported Language
RS422+ English, Deutsch, Français, Italiano, Español, Dansk, Norsk, Svenska, Nederlands, Русский, Polski, Magyar, Português do Brasil, Português Europeu, Türkçe, Český, ภาษาไทย, 日本語, 한국어, 繁體中文, 简体中文
RS822+ English, Deutsch, Français, Italiano, Español, Dansk, Norsk, Svenska, Nederlands, Русский, Polski, Magyar, Português do Brasil, Português Europeu, Türkçe, Český, ภาษาไทย, 日本語, 한국어, 繁體中文, 简体中文
RS1619xs+ English, Deutsch, Français, Italiano, Español, Dansk, Norsk, Svenska, Nederlands, Русский, Polski, Magyar, Português do Brasil, Português Europeu, Türkçe, Český, ภาษาไทย, 日本語, 한국어, 繁體中文, 简体中文
Notes
RS422+ For an updated list of supported browser versions, check the DSM Technical Specifications.
RS822+ For an updated list of supported browser versions, check the DSM Technical Specifications.
RS1619xs+ For an updated list of supported browser versions, check the DSM Technical Specifications.
Add-on Packages view the complete package list
Central Management System
RS422+
RS822+
RS1619xs+
Synology Chat
RS422+
RS822+
RS1619xs+
Suggested Users
RS422+ 100
RS822+ 150
RS1619xs+ 400
Notes
RS422+
  • Measured with simulated users, each with an average record of 20,000 messages, emojis, or stickers. The required server response time is below ten seconds.
  • Models with expandable memory are tested with their maximum supported memory.
RS822+
  • Measured with simulated users, each with an average record of 20,000 messages, emojis, or stickers. The required server response time is below ten seconds.
  • Models with expandable memory are tested with their maximum supported memory.
RS1619xs+ Models with expandable memory are tested with their maximum supported memory.
Download Station
RS422+
RS822+
RS1619xs+
Maximum Concurrent Download Tasks
RS422+ 80
RS822+ 80
RS1619xs+ 80
SAN Manager
RS422+
RS822+
RS1619xs+
Maximum iSCSI Target Number
RS422+ 128
RS822+ 128
RS1619xs+ 256
Maximum LUN
RS422+ 256
RS822+ 256
RS1619xs+ 512
LUN Clone/Snapshot, Windows ODX
RS422+
RS822+
RS1619xs+
Notes
RS422+
RS822+
RS1619xs+ iSCSI Manager has been renamed to SAN Manager in DSM 7.0.
Synology MailPlus / MailPlus Server
RS422+
RS822+
RS1619xs+
Free Email Accounts
RS422+
RS822+ 5 (Additional accounts require purchase of licenses)
RS1619xs+ 5 (Additional accounts require purchase of licenses)
Suggested Users
RS422+
RS822+ 750
RS1619xs+ 5,000
Maximum Server Performance
RS422+
RS822+ 1,484,000 emails per day, approx. 45GB
RS1619xs+ 3,363,000 emails per day, approx. 102.6 GB
Notes
RS422+
RS822+
  • Suggested users is derived from testing in an environment with 20% heavy users (each with 20,000 pre-populated emails and receiving 240 emails per day) and 80% light users (each receiving an average of 20 emails per day). Learn more
  • Models with more than 4 bays were installed with two SSDs for SSD cache.
  • Models with expandable memory are tested with their maximum supported memory.
  • The performance of the mail system will slightly decrease in high-availability mode due to data synchronization between the two servers.
  • Functions that were enabled in all of the tests above: anti-spam, anti-virus, DNSBL, greylist, content scan, full-text search (English only).
RS1619xs+
  • Suggested users is derived from testing in an environment with 20% heavy users (each with 20,000 pre-populated emails and receiving 240 emails per day) and 80% light users (each receiving an average of 20 emails per day). Learn more
  • Models with more than 4 bays were installed with two SSDs for SSD cache.
  • Models with expandable memory are tested with their maximum supported memory.
  • The performance of the mail system will slightly decrease in high-availability mode due to data synchronization between the two servers.
  • Functions that were enabled in all of the tests above: anti-spam, anti-virus, DNSBL, greylist, content scan, full-text search (English only).
Media Server
RS422+
RS822+
RS1619xs+
DLNA Compliance
RS422+
RS822+
RS1619xs+
Synology Photos
RS422+
RS822+
RS1619xs+
Facial Recognition
RS422+
RS822+
RS1619xs+
Object Recognition
RS422+
RS822+
RS1619xs+
Notes
RS422+
RS822+ Object recognition requires an upgrade of memory capacity to a minimum of 4 GB.
RS1619xs+
Snapshot Replication
RS422+
RS822+
RS1619xs+
Maximum Snapshots per Shared Folder
RS422+ 1,024
RS822+ 1,024
RS1619xs+ 1,024
Maximum of System Snapshots
RS422+ 65,536
RS822+ 65,536
RS1619xs+ 65,536
Surveillance Station
RS422+
RS822+
RS1619xs+
Default Licenses
RS422+ 2 (Additional cameras require purchase of licenses)
RS822+ 2 (Additional cameras require purchase of licenses)
RS1619xs+ 2 (Additional cameras require purchase of licenses)
Suggested Maximum IP Cameras and Total FPS (H.264)
RS422+
  • 720p: 40 channels, 1200 FPS
  • 1080p: 40 channels, 800 FPS
  • 3M: 35 channels, 350 FPS
  • 5M: 28 channels, 280 FPS
  • 4K: 17 channels, 170 FPS
RS822+
  • 720p: 40 channels, 1200 FPS
  • 1080p: 40 channels, 800 FPS
  • 3M: 35 channels, 350 FPS
  • 5M: 28 channels, 280 FPS
  • 4K: 17 channels, 170 FPS
RS1619xs+
  • 720p: 75 channels, 2250 FPS
  • 1080p: 75 channels, 1050 FPS
  • 3M: 60 channels, 600 FPS
  • 5M: 40 channels, 400 FPS
  • 4K: 28 channels, 280 FPS
Suggested Maximum IP Cameras and Total FPS (H.265)
RS422+
  • 720p: 40 channels, 1200 FPS
  • 1080p: 40 channels, 1200 FPS
  • 3M: 40 channels, 600 FPS
  • 5M: 40 channels, 480 FPS
  • 4K: 20 channels, 200 FPS
RS822+
  • 720p: 40 channels, 1200 FPS
  • 1080p: 40 channels, 1200 FPS
  • 3M: 40 channels, 600 FPS
  • 5M: 40 channels, 480 FPS
  • 4K: 20 channels, 200 FPS
RS1619xs+
  • 720p: 75 channels, 2250 FPS
  • 1080p: 75 channels, 2250 FPS
  • 3M: 75 channels, 1125 FPS
  • 5M: 70 channels, 700 FPS
  • 4K: 49 channels, 490 FPS
Notes
RS422+
  • Performance figures are obtained from testing conducted with the device fully populated with drives, with their default memory configuration, and under a continuous recording setup. Actual system capabilities may vary based on configuration, drive performance, enabled features, and the presence of additional workloads.
  • Use NVR Selector to quickly find a suitable model based on your requirements.
  • The maximum number of camera stream outputs is 2 times the suggested maximum number of IP cameras.
RS822+
  • Performance figures are obtained from testing conducted with the device fully populated with drives, with their default memory configuration, and under a continuous recording setup. Actual system capabilities may vary based on configuration, drive performance, enabled features, and the presence of additional workloads.
  • Use NVR Selector to quickly find a suitable model based on your requirements.
  • The maximum number of camera stream outputs is 2 times the suggested maximum number of IP cameras.
RS1619xs+
  • Performance figures are obtained from testing conducted with the device fully populated with drives, with their default memory configuration, and under a continuous recording setup. Actual system capabilities may vary based on configuration, drive performance, enabled features, and the presence of additional workloads.
  • Use NVR Selector to quickly find a suitable model based on your requirements.
  • The maximum number of camera stream outputs is 2 times the suggested maximum number of IP cameras.
Synology Drive
RS422+
RS822+
RS1619xs+
Recommended Number of Concurrent Sync Clients
RS422+ 350 (the number of connections that can be maintained when the recommended number of hosted files was reached)
RS822+ 550 (the number of connections that can be maintained when the recommended number of hosted files was reached)
RS1619xs+ 1,800 (the number of connections that can be maintained when the recommended number of hosted files was reached)
Recommended Number of Hosted Files
RS422+ 5,000,000 (applies to files indexed or hosted by Synology Drive. For file access through other standard protocols, refer to the File Services section above)
RS822+ 50,000,000 (applies to files indexed or hosted by Synology Drive. For file access through other standard protocols, refer to the File Services section above)
RS1619xs+ 50,000,000 (applies to files indexed or hosted by Synology Drive. For file access through other standard protocols, refer to the File Services section above)
Notes
RS422+
  • Exceeding the recommended numbers above will not block application operations, but may result in longer response time.
  • Utilizing SSD cache can significantly improve performance.
  • Btrfs file system and non-encrypted shared folders were used during the aforementioned testing.
RS822+
  • Exceeding the recommended numbers above will not block application operations, but may result in longer response time.
  • Utilizing SSD cache can significantly improve performance.
  • Models with expandable memory are tested with their maximum supported memory.
  • Btrfs file system and non-encrypted shared folders were used during the aforementioned testing.
RS1619xs+
  • Exceeding the recommended numbers above will not block application operations, but may result in longer response time.
  • Utilizing SSD cache can significantly improve performance.
  • Models with expandable memory are tested with their maximum supported memory.
  • Btrfs file system and non-encrypted shared folders were used during the aforementioned testing.
Synology Office
RS422+
RS822+
RS1619xs+
Suggested Users
RS422+ 3,000
RS822+ 4,500
RS1619xs+ 7,000
Notes
RS422+
  • Suggested users is derived from testing in an environment with 60% idle users (each logging in and viewing documents) and 40% active users (each executing random actions at intervals of 20 to 40 seconds) operating within documents, each document having 30 users. Learn more
  • Client performance may affect maximum simultaneous editing users. Client PCs used for testing: Intel Core i3-3220 / 8GB RAM
RS822+
  • Suggested users is derived from testing in an environment with 60% idle users (each logging in and viewing documents) and 40% active users (each executing random actions at intervals of 20 to 40 seconds) operating within documents, each document having 30 users. Learn more
  • Models with expandable memory are tested with their maximum supported memory.
  • Client performance may affect maximum simultaneous editing users. Client PCs used for testing: Intel Core i3-3220 / 8GB RAM
RS1619xs+
  • Suggested users is derived from testing in an environment with 60% idle users (each logging in and viewing documents) and 40% active users (each executing random actions at intervals of 20 to 40 seconds) operating within documents, each document having 30 users. Learn more
  • Models with expandable memory are tested with their maximum supported memory.
  • Client performance may affect maximum simultaneous editing users. Client PCs used for testing: Intel Core i3-3220 / 8GB RAM
Virtual Machine Manager
RS422+
RS822+
RS1619xs+
Recommended Virtual Machine Instances
RS422+
RS822+ 8 (Learn more)
RS1619xs+ 8 (Learn more)
Recommended Virtual DSM Number (Licenses required)
RS422+
RS822+ 8 (including 1 Free License)
RS1619xs+ 8 (including 1 Free License)
Notes
RS422+
RS822+ The specifications vary depending on system configuration and memory size.
RS1619xs+ The specifications vary depending on system configuration and memory size.
VPN Server
RS422+
RS822+
RS1619xs+
Maximum Connections
RS422+ 40
RS822+ 40
RS1619xs+ 60