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.
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.
Expansion Unit RX1217sas
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 advance replacement units as early as the next business day in selected regions, maximizing the service uptime for your mission-critical storage and ensuring your business continuity2. Know more about SRS.
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.
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 144 TB (12 TB drive x 12) (Capacity may vary by RAID types)
Hot Swappable Drive
RAID Management through Synology DSM
SAS IN-port 1
SAS OUT-port 1
Size (Height x Width x Depth) 88 mm x 482 mm x 724 mm
Weight 18 kg
Power Recovery Synchronized with the Synology RackStation
Power Supply Unit / Adapter 2 x 500W
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)