Vinpower Digital USB163. Compatible operating systems: Windows 2000/XP/Vista 32bit. Input voltage: 110 - 127 V, Input frequency: 50 - 60 Hz, Power supply: 280 W. Operating relative humidity range: 15 - 85 %, Operating temperature range (T-T): 10 - 32 °C. Dimensions (WxDxH): 191 x 530 x 839 mm. Colour of product: Black