... *RS232, 1*RS232/422/485), 1*PS/2, 1*VGA, 4*USB, 2*GLAN, 1*LPT,1*Audio• Resistive Touch Screen ... *COM(2xRS232, 1XRS232/422/485),1*PS/2, 1*VGA, 4*USB, 2*GLAN,1*AudioExpansion802.11b/g or 802.11n ... , Hanging on the wall or VESA cantilever installPower connector 3 Pin connector input(Optional)Power Supply DC 12V inputOr DC 8V~28V inputLCD ...