PopularDX525
Synology DX525 5-bay expansion unit
Seamless capacity expansion for Synology DiskStation
$1,021.00inc. GSTIn stock
Popular
DX517
Synology DX517 5-bay expansion unit
Effortless capacity expansion for Synology DiskStation solutions on-the-fly.
$1,021.00inc. GSTIn stock
RX418
Synology RX418 4-bay expansion unit
4-bay 1U rackmount expansion unit for 1U RackStation
$1,328.00inc. GSTOnly 1 left
RX426
Synology RX426 4-bay expansion unit
Reliable 4-bay storage expansion for RackStation
$1,339.00inc. GSTOnly 1 left
DX1215II
Synology DX1215II 12-bay expansion unit
Plug-and-play storage expansion for Synology DiskStation
$2,589.00inc. GSTOnly 1 left
DX1222
Synology DX1222 12-bay expansion unit
Easily double or triple the storage capacity of your Synology DiskStation.
$2,589.00inc. GSTOnly 1 left
RX1217
Synology RX1217 12-bay expansion unit
Scale up your RackStation in a breeze
$3,291.00inc. GSTOnly 2 left
RX1217RP
Synology RX1217RP 12-bay expansion unit
Scale up your RackStation in a breeze
$4,999.00inc. GSTOnly 2 left
RX1223RP
Synology RX1223RP 12-bay expansion unit
Reliable storage expansion with redundant power
$4,999.00inc. GSTOnly 2 left
RX1222SAS
Synology RX1222SAS 12-bay expansion unit
Plug-and-play capacity expansion for Synology servers
$5,070.93inc. GSTAvailable to order
RXD1219SAS
Synology RXD1219SAS 12-bay expansion unit
Reliable and highly scalable SAS storage expansion unit for your Synology servers
$8,119.00inc. GSTAvailable to order
Add bays without migrating
An expansion unit connects over eSATA or Infiniband and appears as extra bays in DSM. You can extend an existing storage pool across it or keep it as a separate pool for backups. DX517 and DX525 pair with DiskStation Plus models, RX418, RX426 and RX1223RP with RackStation, RXD1219sas and RX1222sas with the SA series, FX2421 with FlashStation. Each listing names the hosts it supports.