When running out of hard drive capacity on the Synology RackStation, Synology RX1214/RX1214RP provides an easy way to immediately scale capacity by additional 12 hard drives. The RAID volume on the Synology RackStation can be expanded directly without having to reformat the existing hard drives, ensuring the Synology RackStation continues its service during the capacity expansion. Synology RX1214/RX1214RP can be used as a dedicated local backup solution for the Synology RackStation. When created as a separate volume, the Synology RX1214/RX1214RP provides a great backup solution to its local hard disks in case of system failure.Reliable Plug-n-use DesignSynology RackStation securely connects to Synology RX1214/RX1214RP with an high-bandwidth expansion cable that ensures maximum throughput. It allows the hard drives in the connected Synology RX1214/RX1214RP to operate as they are the internal ones of the Synology RackStation, with no lag in data retrieval. With SATA III 6Gb/s interface support, Synology RX1214/RX1214RP unleashes the full performance of the installed drives and provides outstanding data transfer rate. To ensures 24/7 service uptime, Synology RX1214RP is equipped with redundant power supplies, allowing automatic fail-over support if one of the PSUs is failed.