Touch Screen: Surface Acoustic Wave /Wire Resistive, 50,000,000 times with a point of touch, Display??hilips, Samsung 15.1"/17.1"/19.1"/20.1"/21" Machine Cabinet??teel Cabinet sprayed with imported metallic paint??ntimagnetic??Antistatic Color??editerranean Blue??ilver Grey??affron Yellow??tandard?? Control Board: On-Off??PU??isplay??peaker??Fan??Volume control, Monitor the running of Touch Screen Power Supply: Maximum Power: 280W??tart-up Inrush Current:5A,Voltage:AC220V Speaker??ual track stereo??utput power:2?0W. Fan: Industrial Axial Flow Fan??oiseless??irculating cooling. Operating Environment??perating Temperature??-50°C??umidity(40%-80%) Storage Temperature??20-70°C??Port??NC/RJ45/RJ11. Size??340mm?90mm?90mm??7.1"??Net Weight??5KG/75KG