1.Linux pos with printer/usb 2.Cable MODEM, GPRS, CDMA, 3.1D Laser,1D/2D Imager ... : 1.Linux POS2.18 key waterproof keyboard dust. 3.Cable MODEM, GPRS, CDMA, TCP / IP (Internet POS)4.1D ... keyboard, support other programmable keyboard passwordBuilt-in modemRJ11,PSTN modemcommunicationCable MODEM, GPRS, CDMA, TCP / IP (Internet POS)InterfaceMini-USB, ... 90 * 65 mm EP370 Linux POS with printer/WiFi/USB/RJ45