Synology RackStation RS3618xs
High performance and scalable NAS simplifies data management, optimizes virtualization environments for large scale businesses.

High-speed scalable storage server
Synology RS3618xs is a reliable, superior-performance network-attached storage solution for large-scale enterprises with demanding business applications. It simplifies data management, optimizes virtualization environments, and rapidly expands storage capacity with minimal time investment in setup and maintenance.
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CPU
quad-core up to 2.7GHz

RAM options
8GB DDR4 ECC UDIMM, up to 64GB

Network
4 x 1GbE port, optional 10GbE NIC support

Scalability
Up to 36 drives with RX1217/RX1217RP
Ready for 10GbE and beyond
PCIe 3.0 slots allow for faster networking options as you expand your infrastructure. Together with the built-in quad Gigabit ports, RS3618xs offers comprehensive connectivity options for link aggregation and failover configurations.

Fully certified storage virtualization solutions
Synology iSCSI storage fully supports most virtualization solutions to enhance work efficiency with easy management interface. VMware vSphere 6 and VAAI integration helps offload storage operations and optimizes computation efficiency. Windows Offloaded Data Transfer (ODX) speeds up data transfer and migration rate. OpenStack Cinder support turns your Synology NAS into a block-based storage component.
Works best with Synology drives
Enjoy high sustained performance and reliability with enterprise-grade drives designed for Synology NAS, featuring built-in data protection.



RackStation RS3618xs


1 Power button and indicator
2 Beep off button
3 Drive status indicator
4 Drive tray
5 PSU on/off switch
6 Power port
7 PSU fan
8 Console port
9 1GbE RJ-45 port
10 USB 3.0 port
11 Expansion port
12 PCIe 3.0 slot
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.

Hardware Specifications
CPU
|
CPU Model |
Intel Xeon D-1521 |
|
CPU Quantity |
1 |
|
CPU Architecture |
64-bit |
|
CPU Frequency |
4-core 2.4 (base) / 2.7 (turbo) GHz |
|
Hardware Encryption Engine (AES-NI) |
 |
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 |
- 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 |
12 |
|
Maximum Drive Bays with Expansion Unit |
36 (RX1217/RX1217RP x 2) |
|
Compatible Drive Type* (See all supported drives) |
- 3.5" SATA HDD
- 2.5" 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. |
External Ports
|
RJ-45 1GbE LAN Port |
4 (with Link Aggregation / Failover support) |
|
USB 3.2 Gen 1 Port* |
2 |
|
Expansion Port |
2 |
|
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 |
2 x Gen3 x8 slots (x8 link) |
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 - RKS-02) |
|
Notes |
The rail kit is sold separately |
Others
|
System Fan |
80 mm x 80 mm x 4 pcs |
|
Fan Speed Mode |
- Full-Speed Mode
- Cool Mode
- Quiet Mode
|
|
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 |
|
AC Input Power Voltage |
100V to 240V AC |
|
Power Frequency |
50/60 Hz, Single Phase |
|
Power Consumption |
142.76 W (Access) 55.05 W (HDD Hibernation) |
|
British Thermal Unit |
487.12 BTU/hr (Access) 187.84 BTU/hr (HDD Hibernation) |
|
Notes |
- 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 |
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
|
- FCC
- CE
- BSMI
- EAC
- CCC
- KC
- VCCI
- RCM
|
Warranty
|
5 Years |
|
Notes |
The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more) |
Environment
|
RoHS Compliant |
Packaging Content
|
- Main Unit X 1
- Accessory Pack X 1
- AC Power Cord X 1
- Quick Installation Guide X 1
|
Optional Accessories
|
|
|
Notes |
All memory modules will operate at the maximum frequency specified by the CPU manufacturer. |