... -N680 Wide screen1440*900 32bit.support 1280*1024, 24bit.Power Supply-- Input: 100-240VAC, 50-60Hz, Output: 5VDC,2A, ... support touch screen,scanning gun , printer,mocrophone and speaker.to support the latest system patchcould do USB upgradeUnlimited distance connect ... C)Front LED Indicators--Power: connection to power supply, LAN: connection to network, Ready: connection to host PCPorts 1 RJ-45 LAN ...