... 55", 65",70”,82” etc.2. Optional touchscreen: 4-wire/5-wire Resistive, Infrared, SAW, Capacitive, with RS232, USB, touchscreen ... interface such as BNC, SDI, s-video available.4. SAMSUNG/AUO/SHARP panel, with high brightness, short ... 75mm/100mmTouch Type(optional)TouchScreen TypeResistive(5-wire)Optional TouchScreen TypeResistive touch(4-wire), SAW, IR ,CapacitiveTouchScreen interfaceSerial (RS232) ...