The Synology RX1217 is a 12-bay storage expansion unit for your Synology NAS from the RS2XXX, RS3XXX, and RS4XXX series. The RAID volume of your RackStation can easily be expanded to a maximum of 120TB without having to format your existing drives. This way, you can keep everything up and running when installing new drives. Safely connect the Synology to a RackStation with help of the high-bandwidth expansion cable (Infiniband). This lets you download data without slowdowns. Manually activate the sleep mode to save energy and increase the lifespan of your hard drives. The device is 8.8 centimeters tall.