Synology RX1217RP. Chassis type: Rack (2U). Number of storage drives supported: 12, Supported storage drive types: HDD & SSD, Supported storage drive interfaces: Serial ATA, Serial ATA II, Serial ATA III. Width: 430.5 mm, Depth: 692 mm, Height: 88 mm, Weight: 13.4 kg. Product colour: Black, Grey