Synology RX1217SAS 12-Bay SAS Storage Expansion Unit

MX68043 RX1217SAS 12-Bay SAS Storage Expansion Unit
MX68043 RX1217SAS 12-Bay SAS Storage Expansion Unit MX68043 RX1217SAS 12-Bay SAS Storage Expansion Unit MX68043 RX1217SAS 12-Bay SAS Storage Expansion Unit MX68043 RX1217SAS 12-Bay SAS Storage Expansion Unit

Product Info

RX1217sas: Effortless Capacity Expansion for Synology FlashStation and RackStation Solutions On-The-Fly

The Synology RX1217sas SAS/SATA Expansion Chassis provides twelve additional drive bays for your RackStation RS18017xs+ NAS enclosure, letting the host system hold more 2.5" and 3.5" storage drives. Each of the bays has a hot-swappable drive tray for quick installation of a user-supplied drive and supports storage drives that feature a SAS or SATA interface. To run your drives reliably, two 500W power supplies and four 60mm fans are on board.

The RX1217sas comes with a SAS input port that connects to a host system's optional FS3017 expansion card; and a SAS output on the RX1217sas is available for accessing a second optional expansion chassis. This two-port design enables you to expand the RackStation RS18017xs+ NAS enclosure's storage capacity with up to seven RX1217sas chassis. Furthermore, Synology includes a miniSAS expansion cable for connecting the RX1217sas to a RS18017xs+.

  • 12 x 2.5"/3.5" Drive Bays
  • Supports SATA or SAS Drive Interfaces
  • 2 x SAS Ports
  • 4 x 60mm Cooling Fans
  • 2 x 500W Power Supplies


12-Bay 3.5" / 2.5" SAS / SATA Expansion

Easily add 12 additional drive bays to Synology FlashStation or RackStation. 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.

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.

5 Year Warranty

Synology's 5-year limited warranty provides hardware replacement and technical support via email and telephone services, maximizing your enterprises' return on investment.

Synology Replacement Service (SRS)

SRS provides free shipment of replacement units as early as the next business day in selected regions.


Part Number RX1217SAS
Chassis 2U
Drive Bays 12 x 3.5" or 2.5" SATA III, II, or SAS HDD / SSD
(Drives not included)

Supports Hot Swappable Drives
Supports Raid Management through Synology DSM

Max Internal Capacity 120 TB (12x 10TB HDD) Capacity varies by RAID types
Compatible Drive Type 3.5" SAS HDD
2.5" SAS HDD
2.5" SAS SSD
External Interface 1 x SAS In ports
1 x SAS Out ports
2 x AC Power In ports
System Fan 4 x 60mm
Noise Level 60.9 dB(A)
Temperature Operating: 5 to 35° C (40 to 95° F)
Storage: -20°C to 60°C (-5°F to 140°F)
Relative Humidity 5% ~ 95% RH, non-condensing
Power Input: 100 ~ 240Vac, 50 / 60Hz, Single phase
Power Supplies 2 x 500W
Power Recovery Synchronized with the Synology RackStation
Power Consumption 132.7 W (Access)
BTUs: 452.79 BTU/hr (Access)
Environment RoHS Compliant
Certification FCC Class A, CE Class A, BSMI Class A
Dimensions 88 x 482 x 724 mm
Weight 18kg

Note: 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.

Note: Power consumption is measured when fully loaded with Western Digital 1TB WD10EFRX hard drive(s).

Package Contents

  • Synology RX1217sas Storage Expansion Unit
  • 1 x Expansion Cables MiniSAS-HD
  • 2 x AC Power Cords
  • 1 x Accessory Pack
  • Quick Installation Guide