RackStation RS3617xs+
RackStation RS3617xs+
Built to support data-intensive applications and demanding workloads
Powerful storage solution
RS3617xs+ provides a rock-solid and high performing storage solution with over 191,126 random read IOPS and 5,570 MB/s sequential read throughput1. DDR4 ECC UDIMM guarantees data accuracy and performance for mission-critical environments.
CPU
Intel® Xeon® D-1531 6-core processor
RAM options
8GB DDR4 ECC UDIMM, up to 64GB
Network
4 x 1GbE & 2 x 10GbE ports, optional 10GbE NIC support
Scalability
Up to 36 drives with RX1217/RX1217RP2
Digital asset protection
Powered by Synology DiskStation Manager (DSM), Synology NAS offers advanced security measures to protect against sudden data loss and potential security holes. Learn more

Security Advisor
Analyze system settings, password strength and network preferences, and remove any possible malware.

AppArmor
A kernel-level enhancement that blocks malicious programs from accessing unauthorized system resources.

AES 256-bit encryption
Encrypt shared folders and network data transmission to avoid unauthorized data access.

2-step verification
Prevent others from logging in to your DSM by generating a six-digit one-time password (OTP) on your mobile device.


5-year warranty
At Synology, we are committed to product innovation and quality. Synology guarantees a robust and reliable data management experience with a 5-year limited warranty, providing responsive technical support and hardware replacement services to maximize your return on investment.
Complete iSCSI and virtualization solutions
Synology iSCSI storage supports most virtualization solutions such as VMware vSphere, Microsoft Hyper-V, Citrix Xen Server, and OpenStack Cinder to enhance work efficiency. You can run and manage multiple virtual machines on Windows, Linux, or DSM using Virtual Machine Manager. Learn more
Next-generation file system for better data protection
The Btrfs file system introduces advanced storage technologies and optimized snapshots to prevent data corruption and reduce maintenance overhead. While ensuring high-level data integrity, it also offers flexible, efficient data protection and recovery tools.

Flexible shared folder and user quota settings provide comprehensive quota control on all user accounts and shared folder

Snapshot Replication provides schedulable and storage capacity-saving data protection with 1,024 shared folder backups and 65,000 system-wide snapshots

File- or folder-level data restoration accelerates data recovery and provides more flexibility for businesses

Automatic file self-healing detects and recovers corrupted files without user intervention

Powered by Synology DSM
Central Management System
Manage multiple Synology NAS servers simultaneously on a centralized interface to increase business efficiency.
Learn moreSynology MailPlus
Secure, reliable, and private mail server solution with an intuitive and modern mail client.
Learn moreSynology High Availability
Seamless transition between clustered servers in the event of a server failure to minimize the impact on applications.
Learn moreSynology Office
Collaborate on documents, spreadsheets, and slides in real time to boost team productivity.
Learn moreSnapshot Replication
Schedulable and instantaneous data protection of shared folders and iSCSI LUNs for quick disaster recovery.
Learn moreSecurity
Comprehensive built-in security tools are constantly updated to protect your devices against evolving threats.
Learn moreNotes:
- Please visit the performance page for test environment.
- RS3617xs+ supports up to 2 Synology Expansion Unit RX1217/RX1217RP, sold separately.
Hardware Specifications |
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CPU |
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CPU |
CPU Model | Intel Xeon D-1531 |
CPU Architecture | 64-bit | |
CPU Frequency | 6-core 2.2 (base) / 2.7 (turbo) GHz | |
Hardware Encryption Engine (AES-NI) | ||
Memory |
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Memory |
System Memory | 8 GB DDR4 ECC UDIMM |
Memory Module Pre-installed | 8 GB (8 GB x 1) | |
Total Memory Slots | 4 | |
Maximum Memory Capacity | 64 GB (16 GB x 4) | |
Notes |
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Storage |
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Storage |
Drive Bays | 12 |
Maximum Drive Bays with Expansion Unit | 36 (RX1217/RX1217RP x 2) | |
Compatible Drive Type* (See all supported drives) |
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Maximum Single Volume Size* |
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Hot Swappable Drive | ||
Notes |
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External Ports |
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External Ports |
RJ-45 1GbE LAN Port | 4 (with Link Aggregation / Failover support) |
RJ-45 10GbE LAN Port | 2 (with Link Aggregation / Failover support) | |
USB 3.0 Port | 2 | |
Expansion Port | 2 | |
PCIe |
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PCIe |
PCIe Expansion | 2 x Gen3 x8 slots (x8 link) |
File System |
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File System |
Internal Drives |
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External Drives |
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Notes | exFAT Access is purchased separately in Package Center. | |
Appearance |
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Appearance |
Form Factor (RU) | 2U |
Size (Height x Width x Depth) | 88 mm x 482 mm x 724 mm | |
Weight | 14.5 kg | |
Rack Installation Support* | 4-post 19" rack (Synology Rail Kit - RKS1317) | |
Notes | The rail kit is sold separately | |
Others |
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Others |
System Fan | 80 mm x 80 mm x 4 pcs |
Fan Speed Mode |
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Easy Replacement System Fan | ||
Power Recovery | ||
Noise Level* | 50.2 dB(A) | |
Scheduled Power On / Off | ||
Wake on LAN / WAN | ||
Power Supply Unit / Adapter | 500 W | |
Redundant Power Supply | ||
AC Input Power Voltage | 100 V to 240 V AC | |
Power Frequency | 50/60 Hz, Single Phase | |
Power Consumption* |
133.9 W (Access) 69.18 W (HDD Hibernation) |
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British Thermal Unit |
456.60 BTU/hr (Access) 235.90 BTU/hr (HDD Hibernation) |
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Notes |
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Temperature |
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Temperature |
Operating Temperature | 5°C to 35°C (40°F to 95°F) |
Storage Temperature | -20°C to 60°C (-5°F to 140°F) | |
Relative Humidity | 5% to 95% RH | |
Certification |
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Certification |
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Warranty |
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Warranty |
5 Years | |
Notes | The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more) | |
Environment |
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Environment |
RoHS Compliant | |
Packaging Content |
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Packaging Content |
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Optional Accessories |
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Optional Accessories |
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Notes |
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DSM Specifications |
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Storage Management |
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Storage Management |
Maximum Internal Volume Number | 256 |
SSD Read / Write Cache (White Paper) | ||
SSD TRIM | ||
RAID Group | ||
Supported RAID Type |
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RAID Migration |
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Volume Expansion with Larger HDDs |
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Volume Expansion by Adding a HDD |
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Global Hot Spare Supported RAID Type |
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File Services |
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File Services |
File Protocol | CIFS/AFP/NFS/FTP/WebDAV |
Maximum Concurrent CIFS/AFP/FTP Connections | 2,000 | |
Maximum Concurrent CIFS/AFP/FTP Connections (with RAM expansion) | 10,000 | |
Windows Access Control List (ACL) Integration | ||
NFS Kerberos Authentication | ||
Notes |
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Account & Shared Folder |
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Account & Shared Folder |
Maximum Local User Accounts | 16,000 |
Maximum Local Groups | 512 | |
Maximum Shared Folder | 512 | |
Maximum Shared Folder Sync Tasks | 32 | |
High Availability |
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High Availability |
Synology High Availability | |
Log Center |
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Log Center |
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Syslog Events per Second | 3,000 | |
Virtualization |
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Virtualization |
VMware vSphere 6 with VAAI | |
Windows Server 2012 | ||
Windows Server 2012 R2 | ||
Windows Server 2016 | ||
Windows Server 2019 | ||
Citrix Ready | ||
OpenStack | ||
General Specifications |
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General Specifications |
Networking Protocols | SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV |
Supported Browsers |
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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 | |
Add-on Packages view the complete package list |
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Antivirus by McAfee (Trial) |
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Antivirus by McAfee (Trial) |
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Central Management System |
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Central Management System |
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Synology Chat |
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Synology Chat |
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Maximum Users | 6,000 | |
Notes |
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Cloud Station Server |
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Cloud Station Server |
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Recommended Number of Hosted Files | 3,000,000 | |
Recommended Number of Concurrent Sync Clients | 1,800 (the number of connections that can be maintained when the recommended number of hosted files was reached) | |
Notes |
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Document Viewer |
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Document Viewer |
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Download Station |
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Download Station |
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Maximum Concurrent Download Tasks | 80 | |
exFAT Access (Optional) |
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exFAT Access (Optional) |
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iSCSI Manager |
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iSCSI Manager |
Maximum iSCSI Target Number | 256 |
Maximum iSCSI LUN | 512 | |
iSCSI LUN Clone/Snapshot, Windows ODX | ||
Synology MailPlus / MailPlus Server |
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Synology MailPlus / MailPlus Server |
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Free Email Accounts | 5 (Licenses required for additional accounts) | |
Maximum Number of Concurrent Users | 800 | |
Maximum Server Performance | 4,235,000 emails per day, approx. 129GB | |
Notes |
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Media Server |
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Media Server |
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DLNA Compliance | ||
Moments |
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Moments |
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Facial Recognition | ||
Subject Recognition | ||
Auto Color & Rotate | ||
Moments Select | ||
PetaSpace |
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PetaSpace |
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Snapshot Replication |
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Snapshot Replication |
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Maximum Snapshots per Shared Folder | 1,024 | |
Maximum of System Snapshots | 65,536 | |
Surveillance Station |
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Surveillance Station |
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Maximum IP cam (Licenses required) | 90 (including 2 Free License) (See All Supported IP Cameras) | |
Total FPS (H.264) |
2700 FPS @ 720p (1280x720) 2250 FPS @ 1080p (1920x1080) 900 FPS @ 3M (2048x1536) 800 FPS @ 5M (2591x1944) 550 FPS @ 4K (3840x2160) |
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Total FPS (H.265) |
2700 FPS @ 720p (1280x720) 2700 FPS @ 1080p (1920x1080) 1530 FPS @ 3M (2048x1536) 1350 FPS @ 5M (2591x1944) 1080 FPS @ 4K (3840x2160) |
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Total FPS (MJPEG) |
1050 FPS @ 720p (1280x720) 525 FPS @ 1080p (1920x1080) 350 FPS @ 3M (2048x1536) 220 FPS @ 5M (2591x1944) |
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Notes |
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Synology Drive |
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Synology Drive |
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Recommended Number of Hosted Files | 3,000,000 (applies to files indexed or hosted by Synology Drive. For file access through other standard protocols, refer to the File Services section above) | |
Recommended Number of Concurrent Sync Clients | 1,800 (the number of connections that can be maintained when the recommended number of hosted files was reached) | |
Notes |
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Synology Office |
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Synology Office |
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Maximum Users | 3,000 | |
Notes |
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Video Station |
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Video Station |
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Video Transcoding | Group 1 - Type 1 (See more) | |
Maximum Transcoding Channel Number | 1 channel, 30 FPS @ 1080p(1920×1080), H.264 (AVC)/MPEG-4 Part 2 (XVID, DIVX5)/MPEG-2/VC-1 | |
Virtual Machine Manager |
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Virtual Machine Manager |
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Recommended Virtual Machine Instances | 12 (Learn more) | |
Recommended Virtual DSM Number (Licenses required) | 12 (including 1 Free License) | |
Notes | The specifications vary depending on system configuration and memory size. | |
VPN Server |
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VPN Server |
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Maximum Connections | 40 |
Notes:
- Model specifications are subject to change without prior notice.
- The figures are based on Synology internal testing. Each performance test is done individually. No other services or applications are processed at the same time.
- The actual performance may be lower than lab testing figure due to differences in server configuration, deployment, and the number of active operations.
- If usage requirements exceed the specifications above, please contact our regional partners for professional advice.