Vandal Proof IP65 Dynamic Stainless Steel Keyboard with IP65 Dynamic Sealed & Ruggedized Tough Touchpad (KMY299DT) Interface: USB or PS/2 Outstanding Features: 65 keys stainless steel panel mounting keyboard with touchpad Support OS: Windows 95/98/NT/ME/2000/2003/XP/Vista, Linux and UNIX Customized layout available Lettering by etching and inking, or laser technology Carbon-on-Gold key switch technology (silicon gel) Waterproof and dustproof Very rugged vandal proof design Can be cleaned with soapy water, disinfectant or other cleaning agents Material: Front Panel: High quality 304# stainless steel Keys: High quality 304# stainless steel Back panel: Aluminum alloy Mechanical Data: Key trip: 1.5mm Key pressure: 0.8~1.6 N Lifespan: >2 million operations per key Gross Weight: 1.4 KGS Electrical Data: Input Voltage: 5.0VDC¡¨¤ 5% Electric Current: 10mA EMC Emission: EN55022 ESD Standard: Air Discharge 8KV; Contact Discharge 6KV Environmental Adaptability: Operating Temperature: 0¡ã ~+60¡ã Storage Temperature: -25¡ã ~+80¡ã Relative humidity: 30%~90% Atmospheric pressure: 60~106 KPa Reliability: MTBF: >20, 000 hours MTTR: < 30 minutes CE, FCC, RoHS, ESD compliant Waterproof and Dustproof class: IP65 (front panel) Vandal resistant class: IK07 Bubble Wrap + Standard White Box