KeySonic ACK-595. Device interface: USB+PS/2, Keyboard layout: QWERTZ. Cable length: 1.8 m. Keyboard dimensions (WxDxH): 287 x 190 x 26 mm, Keyboard weight: 0.49 kg. Operating temperature range (T-T): 0 - 50 °C, Storage temperature range (T-T): -20 - 60 °C, Operating relative humidity range: 10 - 95 %. Package dimensions (WxDxH): 310 x 198 x 32 mm, Package weight: 0.61 kg