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The Synology RX1217sas 12-Bay NAS Expansion Unit (RX1217sas) allows you to expand your compatible Synology FlashStation or RackStation NAS' capacity with 12 hot-swappable drive trays. The RX1217sas NAS expansion unit features 12 bays that support the installation of 2.5"/3.5" SAS HDDs, 2.5" SAS SSDs, and 2.5"/3.5" SATA HDDs/SSDs, enabling you to make available an additional maximum raw internal capacity of 168TB for your NAS.

Uninterrupted scaling

The Synology RX1217sas comes with two 500W power supplies to ensure no interruptions during expansion.  The hot-swappable bays lets you install drives quickly and easily, making the drives immediately ready for use.

Expanding or backing up

The RX1217sas is compatible with Synology's FS3017, FS2017, and the RS18017xs+, regardless of whether you are expanding storage volume or intend to use the expansion unit as a backup destination.

The Synology RX1217sas offers an easy way to upgrade your NAS storage capacity on the fly.  It is the best solution for businesses committed to providing zero downtime network storage access for its organisation's operations and services.


Read more about the Synology RX1217sas 12 Bay SAS/SATA Expansion Unit on Synology's site HERE.


Model Synology RX1217sas
Classification Expansion Unit
Form Factor 2U Rack Mount
Scalable No
HDD Pre-Installed Diskless
Drive Bays 12
Drive Bay Configuration (#) 12 x 3.5/2.5" SAS/SATA HDD/SSD
Storage Capacity (Installed) None
USB Port No
eSATA Port No
External Port Configuration SAS IN (1) SAS OUT (1)
LAN None
Wireless Not Supported
AV Output None
LCD Display Panel No
Software Synology DSM
Other Features RAID Management through Synology DSM
Package Contents Main Unit (1), Accessory Pack (1), AC Power Cord (2), Expansion Cable (1)
Packaging Retail
Unit Dimensions (W x H x D mm) 430.5 x 88.0 x 724.0
Weight (Kg) 18.00
Warranty 5 year
SKU RX1217sas
Barcode # 846504002535
Shipping Weight 45.0000kg
Shipping Width 0.630m
Shipping Height 0.220m
Shipping Length 0.870m
Shipping Cubic 0.120582000m3
Manufacturer Warranty: 5 Years Limited Warranty
Manufacturer Contact Info:, n/a

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