Comparison results

Highlight Differences

DS124

DS224+

Hardware Specifications
CPU
CPU Model	Realtek RTD1619B	Intel Celeron J4125
CPU Quantity	1	1
CPU Core	4	4
CPU Architecture	64-bit	64-bit
CPU Frequency	1.7 GHz	2.0 (base) / 2.7 (turbo) GHz
Hardware Encryption Engine
Memory
System Memory	1 GB DDR4 non-ECC	2 GB DDR4 non-ECC
Total Memory Slots		1
Maximum Memory Capacity		6 GB (2 GB + 4 GB)
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.
Storage
Drive Bays	1	2
Compatible Drive Type* (See all supported drives)	3.5" SATA HDD 2.5" SATA SSD (with optional 2.5" Disk Holder)	3.5" SATA HDD 2.5" 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.
External Ports
RJ-45 1GbE LAN Port	1	2
USB 3.2 Gen 1 Port*	2	2
USB Copy
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.
Appearance
Size (Height x Width x Depth)	166 mm x 71 mm x 224 mm	165 mm x 108 mm x 232.2 mm
Weight	0.7 kg	1.30 kg
Others
System Fan	60 mm x 60 mm x 1 pcs	92 mm x 92 mm x 1 pcs
Fan Speed Mode	Full-Speed Mode Cool Mode Quiet Mode Low-power Mode	Full-Speed Mode Cool Mode Quiet Mode
Brightness Adjustable Front LED Indicators
Power Recovery
Noise Level*	19.0 dB(A)	22 dB(A)
Scheduled Power On / Off
Wake on LAN / WAN
Power Supply Unit / Adapter	36 watts	60 watts
AC Input Power Voltage	100V to 240V AC	100V to 240V AC
Power Frequency	50/60 Hz, Single Phase	50/60 Hz, Single Phase
Power Consumption	10.69 watts (Access) 3.44 watts (HDD Hibernation)	14.69 watts (Access) 4.41 watts (HDD Hibernation)
British Thermal Unit	36.50 BTU/hr (Access) 11.75 BTU/hr (HDD Hibernation)	50.09 BTU/hr (Access) 15.04 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 state. Two GRAS 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 state. Two GRAS 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%
Temperature
Operating Temperature	0°C to 40°C (32°F to 104°F)	0°C to 40°C (32°F to 104°F)
Storage Temperature	-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
Certification	FCC CE BSMI VCCI RCM UKCA EAC CCC KC	FCC CE BSMI VCCI RCM UKCA CCC KC
Warranty	2-year hardware warranty, extendable to 4 years with Extended Warranty Plus	2-year hardware warranty, extendable to 4 years with Extended Warranty Plus
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. Refer to the Extended Warranty Plus website for details on supported countries/regions. (Learn more)	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. Refer to the Extended Warranty Plus website for details on supported countries/regions. (Learn more)
Environment	RoHS Compliant	RoHS Compliant
Packaging Content	Main Unit X 1 Accessory Pack X 1 AC Power Adapter X 1 RJ-45 LAN Cable X 1 Quick Installation Guide X 1	Main Unit X 1 Accessory Pack X 1 AC Power Adapter X 1 AC Power Cord X 1 RJ-45 LAN Cable X 2 Quick Installation Guide X 1
Optional Accessories	Plus Series 3.5" SATA HDD: HAT3300 Series	DDR4 non-ECC SODIMM: D4NESO-2666-4G Plus Series 3.5" SATA HDD: HAT3300 Series
Notes		All memory modules will operate at the maximum frequency specified by the CPU manufacturer.

DSM Specifications
Storage Management
Maximum Single Volume Size	108 TB	108 TB
Maximum Internal Volume Number	1	64
SSD TRIM
Supported RAID Type	Basic	Synology Hybrid RAID Basic JBOD RAID 0 RAID 1
RAID Migration		Basic to RAID 1
Volume Expansion with Larger HDDs		Synology Hybrid RAID RAID 1
Volume Expansion by Adding a HDD		Synology Hybrid RAID
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 vary depending on drives 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. Actual maximum storage pool and volume sizes vary depending on drives used, the number of drive bays available, and the RAID configuration.
File System
Internal Drives	Btrfs ext4	Btrfs ext4
External Drives	Btrfs ext4 ext3 FAT NTFS HFS+ exFAT	Btrfs ext4 ext3 FAT NTFS HFS+ exFAT
File Services
File Protocol	SMB AFP NFS FTP WebDAV Rsync	SMB AFP NFS FTP WebDAV Rsync
Maximum Concurrent SMB/AFP/FTP Connections	200	500
Maximum Concurrent SMB/AFP/FTP Connections (with RAM expansion)		1,500
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.
Account & Shared Folder
Maximum Local User Accounts	1,024	2,048
Maximum Local Groups	256	256
Maximum Shared Folder	256	256
Maximum Shared Folder Sync Tasks	4	8
Hybrid Share
Hybrid Share Folder Number		10
Hyper Backup
Folder and Package Backup
Entire System Backup
Notes		Full-system backup requires DSM 7.2 or later.
High Availability
Synology High Availability
Log Center
Syslog Events per Second	400	800
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
Supported Browsers	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
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.

Add-on Packages view the complete package list
Central Management System
Synology Chat
Suggested Users		100
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.
Download Station
Maximum Concurrent Download Tasks	80	80
SAN Manager
Maximum iSCSI Target Number	10	128
Maximum LUN	10	256
LUN Clone/Snapshot, Windows ODX
Synology MailPlus / MailPlus Server
Free Email Accounts		5 (Additional accounts require purchase of licenses)
Suggested Users		500
Maximum Server Performance		1,224,000 emails per day, approx. 37GB
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 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	256	1,024
Maximum of System Snapshots	4,096	65,536
Surveillance Station
Default 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: 12 channels, 360 FPS 1080p: 12 channels, 300 FPS 3M: 12 channels, 200 FPS 5M: 12 channels, 140 FPS 4K: 9 channels, 90 FPS	720p: 25 channels, 750 FPS 1080p: 25 channels, 750 FPS 3M: 25 channels, 350 FPS 5M: 25 channels, 280 FPS 4K: 17 channels, 170 FPS
Suggested Maximum IP Cameras and Total FPS (H.265)	720p: 12 channels, 360 FPS 1080p: 12 channels, 360 FPS 3M: 12 channels, 240 FPS 5M: 12 channels, 200 FPS 4K: 12 channels, 140 FPS	720p: 25 channels, 750 FPS 1080p: 25 channels, 750 FPS 3M: 25 channels, 600 FPS 5M: 25 channels, 480 FPS 4K: 20 channels, 200 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.
Synology Drive
Recommended Number of Concurrent Sync Clients	200 (the number of connections that can be maintained when the recommended number of hosted files was reached)	350 (the number of connections that can be maintained when the recommended number of hosted files was reached)
Recommended Number of Hosted Files	500,000 (applies to files indexed or hosted by Synology Drive. For file access through other standard protocols, refer to the File Services section above)	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)
Notes	Exceeding the recommended numbers above will not block application operations, but may result in longer response time. 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. 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	500	1,500
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
Virtual Machine Manager
Recommended Virtual Machine Instances		2 (Learn more)
Recommended Virtual DSM Number (Licenses required)		2 (including 1 Free License)
Notes		The specifications vary depending on system configuration and memory size.
VPN Server
Maximum Connections	20	40

Hardware Specs

Hardware Specifications

CPU

CPU Model

DS124	Realtek RTD1619B
DS224+	Intel Celeron J4125

CPU Quantity

DS124	1
DS224+	1

CPU Core

DS124	4
DS224+	4

CPU Architecture

DS124	64-bit
DS224+	64-bit

CPU Frequency

DS124	1.7 GHz
DS224+	2.0 (base) / 2.7 (turbo) GHz

Hardware Encryption Engine

Memory

System Memory

DS124	1 GB DDR4 non-ECC
DS224+	2 GB DDR4 non-ECC

Total Memory Slots

Maximum Memory Capacity

Notes

DS124	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.
DS224+	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.

DS124

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.

DS224+

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.

Storage

Drive Bays

DS124	1
DS224+	2

Compatible Drive Type* (See all supported drives)

DS124	3.5" SATA HDD 2.5" SATA SSD (with optional 2.5" Disk Holder)
DS224+	3.5" SATA HDD 2.5" SATA SSD

Hot Swappable Drive*

Notes

DS124	"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.
DS224+	"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

DS124	1
DS224+	2

USB 3.2 Gen 1 Port*

DS124	2
DS224+	2

USB Copy

Notes

DS124	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.
DS224+	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.

Appearance

Size (Height x Width x Depth)

DS124	166 mm x 71 mm x 224 mm
DS224+	165 mm x 108 mm x 232.2 mm

Weight

DS124	0.7 kg
DS224+	1.30 kg

Others

System Fan

DS124	60 mm x 60 mm x 1 pcs
DS224+	92 mm x 92 mm x 1 pcs

Fan Speed Mode

DS124	Full-Speed Mode Cool Mode Quiet Mode Low-power Mode
DS224+	Full-Speed Mode Cool Mode Quiet Mode

Brightness Adjustable Front LED Indicators

Power Recovery

Noise Level*

DS124	19.0 dB(A)
DS224+	22 dB(A)

Scheduled Power On / Off

Wake on LAN / WAN

Power Supply Unit / Adapter

DS124	36 watts
DS224+	60 watts

AC Input Power Voltage

DS124	100V to 240V AC
DS224+	100V to 240V AC

Power Frequency

DS124	50/60 Hz, Single Phase
DS224+	50/60 Hz, Single Phase

Power Consumption

DS124	10.69 watts (Access) 3.44 watts (HDD Hibernation)
DS224+	14.69 watts (Access) 4.41 watts (HDD Hibernation)

British Thermal Unit

DS124	36.50 BTU/hr (Access) 11.75 BTU/hr (HDD Hibernation)
DS224+	50.09 BTU/hr (Access) 15.04 BTU/hr (HDD Hibernation)

Notes

DS124	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 state. Two GRAS 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%
DS224+	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 state. Two GRAS 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%

Temperature

Operating Temperature

DS124	0°C to 40°C (32°F to 104°F)
DS224+	0°C to 40°C (32°F to 104°F)

Storage Temperature

DS124	-20°C to 60°C (-5°F to 140°F)
DS224+	-20°C to 60°C (-5°F to 140°F)

Relative Humidity

DS124	5% to 95% RH
DS224+	5% to 95% RH

Certification

DS124	FCC CE BSMI VCCI RCM UKCA EAC CCC KC
DS224+	FCC CE BSMI VCCI RCM UKCA CCC KC

Warranty

DS124	2-year hardware warranty, extendable to 4 years with Extended Warranty Plus
DS224+	2-year hardware warranty, extendable to 4 years with Extended Warranty Plus

Notes

DS124	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. Refer to the Extended Warranty Plus website for details on supported countries/regions. (Learn more)
DS224+	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. Refer to the Extended Warranty Plus website for details on supported countries/regions. (Learn more)

Environment

DS124	RoHS Compliant
DS224+	RoHS Compliant

Packaging Content

DS124	Main Unit X 1 Accessory Pack X 1 AC Power Adapter X 1 RJ-45 LAN Cable X 1 Quick Installation Guide X 1
DS224+	Main Unit X 1 Accessory Pack X 1 AC Power Adapter X 1 AC Power Cord X 1 RJ-45 LAN Cable X 2 Quick Installation Guide X 1

Optional Accessories

DS124	Plus Series 3.5" SATA HDD: HAT3300 Series
DS224+	DDR4 non-ECC SODIMM: D4NESO-2666-4G Plus Series 3.5" SATA HDD: HAT3300 Series

Notes

DS124
DS224+	All memory modules will operate at the maximum frequency specified by the CPU manufacturer.

Software Specs

DSM Specifications

Storage Management

Maximum Single Volume Size

Maximum Internal Volume Number

SSD TRIM

Supported RAID Type

RAID Migration

Volume Expansion with Larger HDDs

Volume Expansion by Adding a HDD

Notes

DS124	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 vary depending on drives used, the number of drive bays available, and the RAID configuration.
DS224+	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 vary depending on drives used, the number of drive bays available, and the RAID configuration.

File System

Internal Drives

External Drives

File Services

File Protocol

Maximum Concurrent SMB/AFP/FTP Connections

Maximum Concurrent SMB/AFP/FTP Connections (with RAM expansion)

Windows Access Control List (ACL) Integration

NFS Kerberos Authentication

Notes

DS124

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.

DS224+

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.

Account & Shared Folder

Maximum Local User Accounts

Maximum Local Groups

Maximum Shared Folder

Maximum Shared Folder Sync Tasks

Hybrid Share

Hyper Backup

Folder and Package Backup

Entire System Backup

Notes

High Availability

Synology High Availability

Log Center

DS124
DS224+

Syslog Events per Second

General Specifications

Supported Protocols

DS124	SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV
DS224+	SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV

Supported Browsers

Supported Language

DS124	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
DS224+	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

DS124	For an updated list of supported browser versions, check the DSM Technical Specifications.
DS224+	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

DS124
DS224+

Suggested Users

Notes

DS124
DS224+	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.

Download Station

DS124
DS224+

Maximum Concurrent Download Tasks

SAN Manager

DS124
DS224+

Maximum iSCSI Target Number

Maximum LUN

LUN Clone/Snapshot, Windows ODX

Synology MailPlus / MailPlus Server

DS124
DS224+

Free Email Accounts

Suggested Users

Maximum Server Performance

Notes

DS124

DS224+

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 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

DS124
DS224+

DLNA Compliance

Synology Photos

DS124
DS224+

Facial Recognition

Object Recognition

Notes

DS124
DS224+	Object recognition requires an upgrade of memory capacity to a minimum of 4 GB.

Snapshot Replication

DS124
DS224+

Maximum Snapshots per Shared Folder

Maximum of System Snapshots

Surveillance Station

DS124
DS224+

Default Licenses

DS124	2 (Additional cameras require purchase of licenses)
DS224+	2 (Additional cameras require purchase of licenses)

Suggested Maximum IP Cameras and Total FPS (H.264)

DS124	720p: 12 channels, 360 FPS 1080p: 12 channels, 300 FPS 3M: 12 channels, 200 FPS 5M: 12 channels, 140 FPS 4K: 9 channels, 90 FPS
DS224+	720p: 25 channels, 750 FPS 1080p: 25 channels, 750 FPS 3M: 25 channels, 350 FPS 5M: 25 channels, 280 FPS 4K: 17 channels, 170 FPS

Suggested Maximum IP Cameras and Total FPS (H.265)

DS124	720p: 12 channels, 360 FPS 1080p: 12 channels, 360 FPS 3M: 12 channels, 240 FPS 5M: 12 channels, 200 FPS 4K: 12 channels, 140 FPS
DS224+	720p: 25 channels, 750 FPS 1080p: 25 channels, 750 FPS 3M: 25 channels, 600 FPS 5M: 25 channels, 480 FPS 4K: 20 channels, 200 FPS

Notes

DS124

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.

DS224+

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

DS124
DS224+

Recommended Number of Concurrent Sync Clients

DS124	200 (the number of connections that can be maintained when the recommended number of hosted files was reached)
DS224+	350 (the number of connections that can be maintained when the recommended number of hosted files was reached)

Recommended Number of Hosted Files

DS124	500,000 (applies to files indexed or hosted by Synology Drive. For file access through other standard protocols, refer to the File Services section above)
DS224+	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)

Notes

DS124	Exceeding the recommended numbers above will not block application operations, but may result in longer response time. Btrfs file system and non-encrypted shared folders were used during the aforementioned testing.
DS224+	Exceeding the recommended numbers above will not block application operations, but may result in longer response time. 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

DS124
DS224+

Suggested Users

Notes

DS124

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

DS224+

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

DS124
DS224+

Recommended Virtual Machine Instances

Recommended Virtual DSM Number (Licenses required)

Notes

DS124
DS224+	The specifications vary depending on system configuration and memory size.

VPN Server

DS124
DS224+

Maximum Connections