Vinpower Digital SharkNet. Hard drive capacity: 500 GB, Supported hard disk drive interfaces: Serial ATA. BD-R write speed: 10 x, BD-R Dual Layer write speed: 4 x, BD-RE write speed: 2 x. Compatible operating systems: Windows 7/Vista/XP. Input voltage: 90 - 240 V, Power supply: 500 W. Operating relative humidity range: 20 - 80 %, Operating temperature range (T-T): 5 - 40 °C