Refurbished RackStation RS2418RP+/RS2418+

Refurbished RackStation RS2418+

Efficient storage for centralized data management

Synology Certified Refurbished

Access Synology solutions in a cost-effective and environmentally responsible way. All certified refurbished products are put through extensive testing, comply with stringent quality standards, and come with a 2-year warranty.

More about Synology Certified Refurbished

Secure storage for your business

Download Datasheet

Business-ready

Over 1737/705 MB/s seq. read/write, and up to 480 TB raw storage before expansion.

Flexible configuration

Add 12 extra drive bays, 1/10/25GbE ports, and SSD cache volumes whenever needed.

Versatile applications

Back up multi-endpoints, manage 40 IP cameras, or safely sync and share files between devices and sites.

Designed for reliability

The RS2418RP+ comes with four 1GbE RJ-45 ports, which can be bonded with Link Aggregation to enable automatic network failover and load balancing.

Two RS2418RP+ units can be paired using Synology High Availability to form a reliable active-passive server cluster, maximizing service uptime.

The RS2423RP+ also features redundant and hot-swappable power supply units to protect service continuity in case there are issues with one power source.

Room for expansion

Easily adjust the 2U 12-bay RS2423RP+/RS2423+ to match the usage of your environment, whether it needs performance, faster networking, or higher storage capacity.

Storage expansion

Add 12 extra drive bays for a total of 24 drive bays with a RX1217RP expansion unit.

SSD cache

Boost read/write IOPS for HDD arrays with NVMe or SATA SSD cache.²

Flexible networking options

Improve I/O or add redundancy with 10/25GbE SFP+ or RJ-45 networking.³

Versatile storage for businesses

The RS2418RP+ is ideal for small to medium-sized businesses and branch offices seeking a high-performing, reliable, and cost-efficient storage solution for file management, data backup, and surveillance.

Intuitive storage for on-site and remote teams

Multi-endpoint data protection

Smart and scalable surveillance

Intuitive storage for on-site and remote teams

Provide secure and convenient cross-platform file access, sharing, and synchronization across multiple locations.

Private file cloud

Enable efficient collaboration with Synology Drive

Synology Drive provides remote data access, synchronization, on-demand file restoration, and backup via handy desktop and mobile applications.Learn more

Multi-platform support

Access personal and shared data from mobile apps, desktop clients, web browsers, or another Synology system. Any changes you make are automatically synced to other devices as soon as they are connected.

Collaborate in real time

Enable concurrent editing of documents, spreadsheets, and slides with Synology Office, with support for conversion to and from Microsoft Word, Excel, PowerPoint, and OpenDocument files.Learn more

Efficient multi-site synchronization

Connect teams with Hybrid Share

Use Hybrid Share to store large sets of data in the cloud, leveraging the large bandwidth of our data centers to stream requested files to local NAS deployed at the branch offices.

Learn more

Reliable data access on demand

With Hybrid Share-enabled folders, remote teams retain full access to the most up-to-date files while benefiting from a reduced local storage footprint and lower bandwidth usage.

Local caching of most-used data

Frequently-accessed files are kept on the local NAS, allowing users to access them at LAN speeds. Files and folders can also be pinned manually to prevent them from being replaced when the cache is full.

Multi-endpoint data protection

Design an effective backup strategy to maximize data and system availability with a host of native and license-free solutions.

Consolidated backup server

Endpoint, VM, and NAS/SAN protection

Securely back up Windows, Mac, and Linux endpoints, Synology servers, and VMware® and Hyper-V® virtual machines with Active Backup for Business.Learn more

Microsoft 365 and Google Workspace

Centralize backups of Microsoft 365 and Google Workspace data to protect cloud data from accidents and simplify compliance with data retention policies. Schedulable backups, flexible file versioning, and block-level deduplication ensure flexibility and savings in terms of storage and bandwidth consumption.Learn more

Data protection and recovery

Hyper Backup

Back up files, LUNs, installed applications, and system configurations to destinations including Synology C2 Storage, public cloud platforms, USB devices, file servers, local folders, and other Synology systems.
Set and forget backup tasks with regular schedules, enhance security with granular user permissions and encryption, keep backup sizes small with built-in deduplication, and restore data flexibly with multi-versioning.

Snapshot Replication

Snapshot Replication enables configurable point-in-time snapshots of shared folders and VM storage with an RPO as low as 5 minutes and recovery within seconds.Learn more

Smart and scalable surveillance

Leverage flexible deployment options, intuitive management capabilities, and advanced video analytics to secure your premises.

Simple-to-deploy local surveillance

Wide device compatibility

Connect up to 40 IP cameras from a selection of over 8,600 validated models thanks to Synology Surveillance Station’s wide camera compatibility.

Multi-platform convenience

Monitor live streams or watch recordings from web browsers, desktop clients, or the DS cam mobile app.

Secure and private storage

Footage is stored locally for easier compliance with data protection regulations and further protected from unauthorized access with industry-standard AES-256 encryption.

Flexible monitoring of multiple locations

Assisted camera deployment

Automatically locate new cameras within a set IP range, and configure units in batch via spreadsheet import or replicating settings to new cameras.

Centralized management and monitoring

Stay on top of your deployment by previewing triggered events directly on multi-floor or multi-location maps, with online map integration for Google Maps and OpenStreetMap.

Time-saving video analytics

Take advantage of intelligent monitoring features such as motion detection, no-idle zones, foreign object detection, and anomaly detection that cater to common surveillance scenarios.

Works best with Synology drives

Enjoy high sustained performance and reliability with enterprise-grade drives designed for Synology NAS, featuring built-in data protection.

HDD

Enterprise Series 3.5" SATA

SSD

Enterprise Series 2.5" SATA

Enterprise Series M.2 NVMe

Hardware Overview

RS2418RP+

RS2418+

1Power button and indicator
2Drive Status Indicators
3Alert indicator
4Beep off button

5Drive Trays
6Drive status indicator
7Rail Kit Release Tabs
8Power port

9PSU indicator and beep off button
10PSU fan
11Console port
121GbE RJ-45 port

13USB 3.0 port
14Expansion port
15PCIe expansion slot
16Reset button

1Power button and indicator
2Beep off button
3Drive tray
4Drive status indicator

5Power port
6Power supply on/off switch
7PSU fan
8Console port

91GbE RJ-45 port
10USB 3.0 port
11Expansion port
12PCIe expansion slot

13Reset button

Notes:RS2418RP+/RS2418+ supports up to 24 drives with the addition of a Synology RX1217RP/RX1217 expansion unit, sold separately.SSD cache can be enabled using SNV3400/SNV3500 NVMe SSDs along with an M2D20 adapter card, or by using a compatible 2.5" SATA SSD. All add-ons are sold separately.For the most up-to-date list of compatible NICs, please check our compatibility list.C2 Storage for Hyper Backup and Hybrid Share requires purchase of an eligible annual or monthly subscription. A free trial is available for each newly registered device.Surveillance Station includes 2 free licenses. Connecting more cameras and devices requires additional licenses. Learn more Check the compatibility list for supported drives.

Hardware Specs

Hardware Specifications	Refurbished RS2418RP+	Refurbished RS2418+
CPU
CPU Model	Intel Atom C3538	Intel Atom C3538
CPU Quantity	1	1
CPU Core	4	4
CPU Architecture	64-bit	64-bit
CPU Frequency	2.1 GHz	2.1 GHz
Hardware Encryption Engine
Memory
System Memory	4 GB DDR4 non-ECC UDIMM	4 GB DDR4 non-ECC UDIMM
Memory Module Pre-installed	4 GB (4 GB x 1)	4 GB (4 GB x 1)
Total Memory Slots	4	4
Maximum Memory Capacity	64 GB (16 GB x 4)	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. 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 memory upgrade limitations, visit here. For more information on the recommended memory configurations, visit here.	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 memory upgrade limitations, visit here. For more information on the recommended memory configurations, visit here.
Storage
Drive Bays	12	12
Maximum Drive Bays with Expansion Unit	24 (RX1217RP/RX1217 x 1)	24 (RX1217RP/RX1217 x 1)
Drive Type (See all supported drives)	3.5" SATA HDD 2.5" SATA HDD 2.5" SATA SSD	3.5" SATA HDD 2.5" SATA HDD 2.5" SATA SSD
Hot Swappable Drive*
External Ports
RJ-45 1GbE LAN Port	4	4
USB 3.2 Gen 1 Port*	2	2
Expansion Port	1	1
Expansion Port Type	Infiniband	Infiniband
Notes	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 x8 slot (black, x4 link)	1 x Gen3 x8 slot (black, x4 link)
Appearance
Form Factor (RU)	2U	2U
Size (Height x Width x Depth)	88 mm x 482 mm x 724 mm	88 mm x 482 mm x 696 mm
Weight	13.85 kg	13.22 kg
Rack Installation Support*	4-post 19" rack (Synology Rail Kit - RKS-02)	4-post 19" rack (Synology Rail Kit - RKS-02)
Notes	The rail kit is sold separately	The rail kit is sold separately
Others
System Fan	80 mm x 80 mm x 4 pcs	80 mm x 80 mm x 4 pcs
Fan Speed Mode	Full-Speed Mode Cool Mode Quiet Mode	Full-Speed Mode Cool Mode Quiet Mode
Easy Replacement System Fan
Power Recovery
Noise Level*	54 dB(A)	54 dB(A)
Scheduled Power On / Off
Wake on LAN / WAN
Power Supply Unit / Adapter	500 watts	500 watts
Redundant Power Supply		-
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	119.6 watts (Access) 55.9 watts (HDD Hibernation)	109 watts (Access) 52.4 watts (HDD Hibernation)
British Thermal Unit	407.84 BTU/hr (Access) 190.62 BTU/hr (HDD Hibernation)	371.69 BTU/hr (Access) 178.68 BTU/hr (HDD Hibernation)
Notes	Power consumption is measured when it is fully loaded with Western Digital 1TB WD10EFRX hard drive(s). Support for Wake on WAN needs switch and routers which recognize Magic Packet. 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%	Power consumption is measured when it is fully loaded with Western Digital 1TB WD10EFRX hard drive(s). Support for Wake on WAN needs switch and routers which recognize Magic Packet. 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	5°C to 35°C (40°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)
Relative Humidity	5% to 95% RH	5% to 95% RH
Certification
	FCC CE BSMI EAC CCC BIS VCCI RCM	FCC CE BSMI EAC CCC BIS VCCI RCM
Warranty
	2 Years	2 Years
Notes	The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more)	The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more)
Environment
	RoHS Compliant	RoHS Compliant
Packaging Content
	Main Unit X 1 Accessory Pack X 1 AC Power Cord X 2 Quick Installation Guide X 1	Main Unit X 1 Accessory Pack X 1 AC Power Cord X 1 Quick Installation Guide X 1
Optional Accessories
	DDR4 non-ECC UDIMM: D4NE-2666-4G DDR4 ECC UDIMM: D4EC-2666-16G Expansion Units: RX1217/RX1217RP Enterprise Series 3.5" SATA HDD: HAT5300 Series Enterprise Series 2.5" SATA SSD: SAT5200 Series M.2 SSD Adapter Card: M2D20/M2D18 10GbE Network Interface Card: E10G21-F2/E10G30-T2/E10G18-T1 Rail Kit Sliding: RKS-02	DDR4 non-ECC UDIMM: D4NE-2666-4G DDR4 ECC UDIMM: D4EC-2666-16G Expansion Units: RX1217/RX1217RP Enterprise Series 3.5" SATA HDD: HAT5300 Series Enterprise Series 2.5" SATA SSD: SAT5200 Series M.2 SSD Adapter Card: M2D20/M2D18 10GbE Network Interface Card: E10G21-F2/E10G30-T2/E10G18-T1 Rail Kit Sliding: RKS-02
Notes	All memory modules will operate at the maximum frequency specified by the CPU manufacturer. Minimum DSM version requirement: 6.2.2 The original non-ECC memory modules must be removed before the optional ECC memory modules can be installed. For more information, visit here.	All memory modules will operate at the maximum frequency specified by the CPU manufacturer. Minimum DSM version requirement: 6.2.2 The original non-ECC memory modules must be removed before the optional ECC memory modules can be installed. For more information, visit here.

DSM Specifications	Refurbished RS2418RP+	Refurbished RS2418+
Storage Management
Maximum Single Volume Size	108 TB	108 TB
Maximum Internal Volume Number	64	64
SSD Read/Write Cache (Determining cache size)
SSD TRIM
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 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
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
Volume Expansion by Adding a HDD	Synology Hybrid RAID JBOD RAID 5 RAID 6	Synology Hybrid RAID JBOD RAID 5 RAID 6
Global Hot Spare Supported RAID Type	Synology Hybrid RAID RAID 1 RAID 5 RAID 6 RAID 10	Synology Hybrid RAID RAID 1 RAID 5 RAID 6 RAID 10
Notes	Each internal volume (may consist of multiple drives) is expandable up to 108TB.	Each internal volume (may consist of multiple drives) is expandable up to 108TB.
File System
Internal Drives	Btrfs ext4	Btrfs ext4
External Drives	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.	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
Maximum Concurrent SMB/AFP/FTP Connections	1,000	1,000
Maximum Concurrent SMB/AFP/FTP Connections (with RAM expansion)	2,000	2,000
Windows Access Control List (ACL) Integration
NFS Kerberos Authentication
Notes	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. 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
Maximum Local Groups	256	256
Maximum Shared Folder	512	512
Maximum Shared Folder Sync Tasks	16	16
Hybrid Share
Maximum Hybrid Share Folders	10	10
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.
High Availability
Synology High Availability
Log Center

Syslog Events per Second	800	800
Virtualization
VMware ESXi 6.5 and VAAI
Windows Server 2012
Windows Server 2012 R2
Windows Server 2016
Windows Server 2019
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
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

Notes	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
SAN Manager

Maximum iSCSI Target Number	128	128
Maximum LUN	256	256
LUN Clone/Snapshot, Windows ODX
Notes	iSCSI Manager has been renamed to SAN Manager in DSM 7.0.	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)
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 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). Models with expandable memory are tested with their maximum supported memory. To estimate the RAM requirement for your NAS, please read this article.	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 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). Models with expandable memory are tested with their maximum supported memory. To estimate the RAM requirement for your NAS, please read this article.
Media Server

DLNA Compliance
Synology Photos

Facial Recognition
Object Recognition
Snapshot Replication

Maximum Snapshots per Shared Folder	1,024	1,024
Maximum of System Snapshots	65,536	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)	1080p: 40 channels, 960 FPS 3M: 40 channels, 520 FPS 5M: 32 channels, 320 FPS 4K: 24 channels, 240 FPS	1080p: 40 channels, 960 FPS 3M: 40 channels, 520 FPS 5M: 32 channels, 320 FPS 4K: 24 channels, 240 FPS
Suggested Maximum IP Cameras and Total FPS (H.265)	1080p: 40 channels, 1200 FPS 3M: 40 channels, 880 FPS 5M: 40 channels, 520 FPS 4K: 40 channels, 400 FPS	1080p: 40 channels, 1200 FPS 3M: 40 channels, 880 FPS 5M: 40 channels, 520 FPS 4K: 40 channels, 400 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 number of streams that can be viewed simultaneously is twice the suggested maximum number of cameras. For example, if the suggested maximum number of cameras for a model is 10 under H.264, 1080p, the model can support up to 20 streams of the same specification at the same time.	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 number of streams that can be viewed simultaneously is twice the suggested maximum number of cameras. For example, if the suggested maximum number of cameras for a model is 10 under H.264, 1080p, the model can support up to 20 streams of the same specification at the same time.
Synology Drive

Recommended Number of Concurrent Sync Clients	550 (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)
Recommended Number of Hosted Files	1,000,000 (applies to files indexed or hosted by Synology Drive. For file access through other standard protocols, refer to the File Services section above)	1,000,000 (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. 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	1,800	1,800
Notes	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	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	4 (Learn more)	4 (Learn more)
Recommended Virtual DSM Number (Licenses required)	4 (including 1 Free License)	4 (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	30	30

Hardware Specs

Hardware Specifications		Refurbished RS2418RP+	Refurbished RS2418+
CPU	CPU Model	Intel Atom C3538	Intel Atom C3538
	CPU Quantity	1	1
	CPU Core	4	4
	CPU Architecture	64-bit	64-bit
	CPU Frequency	2.1 GHz	2.1 GHz
	Hardware Encryption Engine
Memory	System Memory	4 GB DDR4 non-ECC UDIMM	4 GB DDR4 non-ECC UDIMM
	Memory Module Pre-installed	4 GB (4 GB x 1)	4 GB (4 GB x 1)
	Total Memory Slots	4	4
	Maximum Memory Capacity	64 GB (16 GB x 4)	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. 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 memory upgrade limitations, visit here. For more information on the recommended memory configurations, visit here.
Storage	Drive Bays	12	12
	Maximum Drive Bays with Expansion Unit	24 (RX1217RP/RX1217 x 1)	24 (RX1217RP/RX1217 x 1)
	Drive Type (See all supported drives)	3.5" SATA HDD 2.5" SATA HDD 2.5" SATA SSD	3.5" SATA HDD 2.5" SATA HDD 2.5" SATA SSD
	Hot Swappable Drive*
External Ports	RJ-45 1GbE LAN Port	4	4
	USB 3.2 Gen 1 Port*	2	2
	Expansion Port	1	1
	Expansion Port Type	Infiniband	Infiniband
	Notes	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 x8 slot (black, x4 link)	1 x Gen3 x8 slot (black, x4 link)
Appearance	Form Factor (RU)	2U	2U
	Size (Height x Width x Depth)	88 mm x 482 mm x 724 mm	88 mm x 482 mm x 696 mm
	Weight	13.85 kg	13.22 kg
	Rack Installation Support*	4-post 19" rack (Synology Rail Kit - RKS-02)	4-post 19" rack (Synology Rail Kit - RKS-02)
	Notes	The rail kit is sold separately
Others	System Fan	80 mm x 80 mm x 4 pcs	80 mm x 80 mm x 4 pcs
	Fan Speed Mode	Full-Speed Mode Cool Mode Quiet Mode	Full-Speed Mode Cool Mode Quiet Mode
	Easy Replacement System Fan
	Power Recovery
	Noise Level*	54 dB(A)	54 dB(A)
	Scheduled Power On / Off
	Wake on LAN / WAN
	Power Supply Unit / Adapter	500 watts	500 watts
	Redundant Power Supply		-
	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	119.6 watts (Access) 55.9 watts (HDD Hibernation)	109 watts (Access) 52.4 watts (HDD Hibernation)
	British Thermal Unit	407.84 BTU/hr (Access) 190.62 BTU/hr (HDD Hibernation)	371.69 BTU/hr (Access) 178.68 BTU/hr (HDD Hibernation)
	Notes	Power consumption is measured when it is fully loaded with Western Digital 1TB WD10EFRX hard drive(s). Support for Wake on WAN needs switch and routers which recognize Magic Packet. 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	5°C to 35°C (40°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)
	Relative Humidity	5% to 95% RH	5% to 95% RH
Certification		FCC CE BSMI EAC CCC BIS VCCI RCM	FCC CE BSMI EAC CCC BIS VCCI RCM
Warranty		2 Years	2 Years
Warranty	Notes	The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more)
Environment		RoHS Compliant	RoHS Compliant
Packaging Content		Main Unit X 1 Accessory Pack X 1 AC Power Cord X 2 Quick Installation Guide X 1	Main Unit X 1 Accessory Pack X 1 AC Power Cord X 1 Quick Installation Guide X 1
Optional Accessories		DDR4 non-ECC UDIMM: D4NE-2666-4G DDR4 ECC UDIMM: D4EC-2666-16G Expansion Units: RX1217/RX1217RP Enterprise Series 3.5" SATA HDD: HAT5300 Series Enterprise Series 2.5" SATA SSD: SAT5200 Series M.2 SSD Adapter Card: M2D20/M2D18 10GbE Network Interface Card: E10G21-F2/E10G30-T2/E10G18-T1 Rail Kit Sliding: RKS-02	DDR4 non-ECC UDIMM: D4NE-2666-4G DDR4 ECC UDIMM: D4EC-2666-16G Expansion Units: RX1217/RX1217RP Enterprise Series 3.5" SATA HDD: HAT5300 Series Enterprise Series 2.5" SATA SSD: SAT5200 Series M.2 SSD Adapter Card: M2D20/M2D18 10GbE Network Interface Card: E10G21-F2/E10G30-T2/E10G18-T1 Rail Kit Sliding: RKS-02
Optional Accessories	Notes	All memory modules will operate at the maximum frequency specified by the CPU manufacturer. Minimum DSM version requirement: 6.2.2 The original non-ECC memory modules must be removed before the optional ECC memory modules can be installed. For more information, visit here.