Expansion Unit RX1217sas
Compatibility Downloads
Compatibility Downloads

Expansion Unit RX1217sas

Effortless capacity expansion for Synology FlashStation and RackStation solutions on-the-fly.

RX1217sas
RX1217sas

12-bay 3.5"/2.5" SAS/SATA expansion

Easily add 12 additional drive bays to Synology FlashStation or RackStation1. Supporting both 2.5" and 3.5" SAS/SATA drives, the RX1217sas is a flexible solution supporting on-the-fly volume expansion or serving as a local backup destination.

12-bay 3.5

Maximum reliability design

Dual power supplies ensure continuous service uptime. Easily replace defective drives with the hot swappable drive trays. Experience fast and secure rack cabinet installation with the optional sliding rail kit RKS1317.

Maximum reliability design
5-year warranty

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.

Notes:

  1. View specifications for a list of supported models.
Hardware Specifications
Applied Models
Applied Models
 Supports creating volumes across different units
  • FS series:FS6400, FS3600, FS3400, FS3017, FS2017
  • SA series:SA3600, SA3400
  • 17 series:RS18017xs+
Notes
  • To have better performance, we recommend creating storage volumes physically located within the same NAS or Expansion Unit, rather than creating volumes across your NAS and Expansion Unit.
  • Connecting to a Synology FlashStation FS3017 requires the optional FS3017 Expansion Card (FXC17) to be installed on the host device. FS3017 Expansion Card is sold separately.
Storage
Storage
 Drive Bays 12
Compatible Drive Type* (See all supported drives)
  • 3.5" SAS HDD
  • 2.5" SAS HDD
  • 2.5" SAS SSD
  • 3.5" SATA HDD
  • 2.5" SATA SSD
Maximum Internal Raw Capacity 192 TB (16 TB drive x 12) (Capacity may vary by RAID types)
Hot Swappable Drive*
RAID Management through Synology DSM
Notes Synology only guarantees full functionality, reliability, and performance for Synology drives listed on the compatibility list. The use of non-validated components may limit certain functionality and result in data loss and system instability.
External Ports
External Ports
 SAS IN-port 1
SAS OUT-port 1
Appearance
Appearance
 Size (Height x Width x Depth) 88 mm x 430.5 mm x 692 mm
Size (Height x Width x Depth) (with server ears) 88 mm x 482 mm x 724 mm
Weight 18 kg
Rack Installation Support* 4-post 19" rack (Synology Rail Kit - RKS-02)
Notes The rail kit is sold separately
Power
Power
 Power Recovery Synchronized with the Synology RackStation
Power Supply Unit / Adapter 500 W
AC Input Power Voltage 100V to 240V AC
Power Frequency 50/60 Hz, Single Phase
Power Consumption 132.7 W (Access)
89.3 W (HDD Hibernation)
British Thermal Unit 452.79 BTU/hr (Access)
304.7 BTU/hr (HDD Hibernation)
Redundant Power Supply (for RP model)
Notes Power consumption is measured when it is fully loaded with Western Digital 1TB WD10EFRX hard drive(s).
Temperature
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
Others
Others
 System Fan 60 mm x 60 mm x 4 pcs
Easy Replacement System Fan
Noise Level* 60.9 dB(A)
Certification
Certification
  • UL
  • FCC
  • CE
  • BSMI
  • EAC
  • RCM
  • KC
Warranty
Warranty
 5 Years
Notes The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more)
Environment & Packaging
Environment
Environment
 RoHS Compliant
Packaging Content
Packaging Content
  • Main Unit X 1
  • Accessory Pack X 1
  • AC Power Cord X 2
  • Expansion Cable: MiniSAS-HD X 1
  • Quick Installation Guide X 1
Optional Accessories
Optional Accessories

Notes:

  1. Model specifications are subject to change without prior notice.
  2. 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.
  3. The actual performance may be lower than lab testing figure due to differences in server configuration, deployment, and the number of active operations.
  4. If usage requirements exceed the specifications above, please contact our regional partners for professional advice.