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. ... 5-wire,SAW touch or IR touch)Parameters of the motherboardCpu:dual core AMD-E350,1.6Ghz mini computer processorChipset:AMDHudsonM1RAM:DDR3 ...