... 1Color Resolution: 16.2MBrightness: 250cd/Touch Screen: MapleTouch 5-Wire Resistive Touch Screen (Hitting life: up to 35 ... point)I/O ConnectionVGA Port: DB-15 PortTouch Screen Controller: USB/RS232 optionalController Port: USB/RS232 optionalCircumstanceWorking ... control, high-end medical apparatus, mechanism, water and electric power industry, geology, telecommunication, military technology, etc, ...