metal keyboard with touchpad KMY299DT Dimension: Front Panel: 330x100mm Overall: 354×124mm Touch pad: 32x48mm Basic Instructions Support OS: Windows 95/98/NT/ME/2000/2003/XP/Vista, Linux and Unix Comply with ISO/IEC 9995,GB/T14081 standard Keyboard made of high quality stainless steel With 65 customized keys and touchpad Dustproof, waterproof, shake-proof and vandal proof G.W.: 1.6kgs 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 Environment adaptation Protection Level：IP65 static /IP54 dynamic Operating Temperature： Economical Grage: 0℃～+45℃ RH:30~90%, Industrial Grade: -40℃～+60℃ RH: 30~90% Storage temperature(Recommended)：-25℃～+55℃ RH:20~95%(No condensate)　 Maximum humidity in operating environment: 90% Air Pressure: 60-106 Kpa Approvals: RoHS, CE, FCC，IP65,IK07