Keytronic VIEW SEAL CTKEY. Device interface: USB. Keyboard dimensions (WxDxH): 455 x 171 x 38 mm. Operating temperature range (T-T): 0 - 40 °C, Operating relative humidity range: 5 - 90 %. Package weight: 1.13 kg. Packaging height: 64 mm, Packaging length: 533 mm, Packaging depth: 279 mm