... up to 4G) External Ports: 1*RS232, 1*VGA, 1*RJ45, 4*USB, 1*HDMI,2*Audio,1*DC,1*power ... switchSmooth corners,Black wire drawing surface oxidation shellBuilt-in Intel Wifi or 3G,VESA Stand or VESA Wall Racks --Optional Automatic ... switch on function --Optional EU/ AU /US/UK standard power adapter 18.5 INCH ALL IN ONE Touch PC VESA Stand ...