Ynology dx1215 delivers an effortless volume expansion and data backup solution for selected synology diskstation servers by providing an additional 12 drive slots with sata iii 6gbs interface support synology dx1215 is backed with synologyrsquos 5 year limited warranty highlight plug and use design for seamless storage space upgrade online volume expansion sata iii 6gbs interface support perfect for local backup solution energy saving hibernation mode managed from synology diskstation