... touchscreen: 4-wire/5-wire Resistive, Infrared, SAW, Capacitive, with USB or RS232 touchscreen interface.3. One aluminum bezel on the ... /AUO/SHARP panel, with high brightness, short response time, low power consumption; 7"-10.4" is with LED as backlight, 12 ... -In/Line-Out/Speaker out with 3W AMP CircuitUSB portsDefaultx4 USB(Max x6)Touch TypeTouchScreen TypeResistive(4-wire/5-wire)Optional ...