... of professionals to install;touch all-in-one computer Monitor Size42" 1046.5(width)X ... Ram1 GBPower supply 1U industrial power supplyHarddisk160GBExtended interfaces1 VGA, 1 DVI ,4 USB ,1 LAN ... ,1 TVOUT ,2 COM ,built-in speakertouch all-in-one computerhardware configuration can be customized Light ... protection,Safety and stabilization:particular built-in power supply.main machine, radiation,electric ...