... and interfaces.no requirement of professionals to install;touch all-in-one computer Monitor Size42" 1046.5(width)X 637.5 ... VGA, 1 DVI ,4 USB ,1 LAN ,1 TVOUT ,2 COM ,built-in speakertouch all-in-one computerhardware configuration can be customized ... effects.Healthy and environmental protection,Safety and stabilization:particular built-in power supply.main machine, radiation,electric shock,leakage power ...