Synology RX1217 Network Storage HDD Interface: 12 x SATA (12 x Bay) Power: AC input power voltage: 100V to 240V Power frequency: 50Hz to 60Hz, single phase Temperature: Operating temperature: 5 degree C to 35 degree C (40 degree F to 95 degree F) Storage temperature: -20 degree C to 60 degree C (-5 degree F to 140 degree F) Humidity: 5-95% R.H Dimensions: 3.46 x 16.95 x 25.35 Weight: 28.00 lbs. Package Contents: RX1217 main unit, Quick Installation Guide, accessory pack, AC power cord x 1 (RX1217), AC power cord x 2 (RX1217RP), expansion cable