19" touch screen pc all in one Material:Aluminum,steel 4wires/5 wires ... )WIFI(optional)Aluminum bezel,motherboard with fan,good coolingpolishing, sand blasting, wire drawing, electrophoresis, spraying, oxidation, screen printing,Oxidation wiredrawing processing.The ... :1 Brightness:400 cd/m2 Touch screen:4-wire resistive usb2.0 (can be build 5-wire,SAW touch or IR touch)Parameters of the motherboardCpu ...