Synology RX1211/RX1211RP delivers an effortless solution for volume expansion & data backup for Synology Rack Station RS2211+/RS2211RP+. Key Features Plug-n-use Minimizes Downtime Hot-swappable HDD Design HDD Hibernation/ Deep Sleep Mode Managed from Synology Disk Station Manager 3.1 The RX1211/RX1211RP seamlessly scales up the storage capacity of the Synology RS2211+/RS2211RP+ by an additional 12 hard drives on-the-fly when connected directly to the Synology RS2211+/RS2211RP+. Volume Expansion & Backup When running out of the hard drive capacity on the Synology RS2211+/RS2211RP+, the Synology RX1211/RX1211RP provides an easy way to immediately scale capacity by additional 12 hard drives. The RAID volume on the Synology RS2211+/RS2211RP+ can be expanded directly without having to reformat the existing hard drives, ensuring the Synology RS2211+/RS2211RP+ continues its service during the capacity expansion. When created as an independent volume, the Synology RX1211/RX1211RP provides an easy solution for backing up the Synology RS2211+/RS2211RP+. Reliable Plug-n-use Design The Synology RS2211+/RS2211RP+ securely connects to the Synology RX1211/RX1211RP with an Infini Band cable, offering high-bandwidth connectivity to further ensure efficiency. It allows the hard drives in the connected Synology RX1211/RX1211RP to operate as they are the internal ones of the Synology RS2211+/RS2211RP+, with no lag in data retrieval. Green & Easy to Manage HDD hibernation or HDD deep sleep mode can be configured to take effect automatically when the system has been inactive for a specified period of time. This not only saves energy but also extends the lifespan of the hard disks. Synology RX1211/RX1211RP is managed with Synology Disk Station Manager 3.1, no additional software installation is required.