Metal keyboard with trackball KMY299D Faceplate Dimensions(W X H): 330x100 mm Basic Instructions Support WIN98, WIN2000, WIN XP System comply with ISO/IEC 9995, GB/T14081 standard Keyboard made of high quality stainless steel With 65 customized keys and trackball Dustproof, waterproof, shake-proof and vandal proof Applications: Check-in Kiosk, Info-Kiosk, Internet Kiosk, Medical Kiosk, Industrial Control Platform. Interface: PS/2 or USB Mechanism Performance Keyboard lifespan: more than 2 million Force on keys: 3-5N Key travel: >2. 5mm Diameter of trackball: 25mm Environment adaptation Protection Level：IP65 static /IP54 dynamic Operating Temperature： Economical Grage: 0C～+45C RH: 30~90%, Storage temperature(Recommended)：-25C～+55C RH: 20~95%(No condensate)　 Maximum humidigy in operating environment: 90% Air Pressure: 60-106 Kpa Approvals: RoHS, CE, FCC IP65, IK07