Synology 2u 12 bay expansion unit for increasing capacity of the synology rackstationr key featuresr r plug n use design for seamless storage space upgrader online volume expansionr sata iii 6gbs interface supportr redundant power supplies ensure service uptime rx1214rp only r energy saving deep sleep moder r volume expansion backupr when running out of hard drive capacity on the synology rackstation synology rx1214rx1214rp provides an easy way to immediately scale capacity by additional