Cherry Biometric Keyboard w/ Smart Card Reader. Device interface: USB. Cable length: 1.75 m. Keyboard dimensions (WxDxH): 455 x 196 x 53.5 mm, Keyboard weight: 1.2 kg. Current consumption: 150 mA. Operating temperature range (T-T): 0 - 50 °C, Storage temperature range (T-T): -20 - 60 °C