Rugged WinCE Computer with Wifi, Bluetooth, LAN, RS232, RS485, 3G, GPS optional, IP64 standard 7 inch Rugged WinCE computer ... 2, USB Device 2.0 x 1RS232 x 3/ RS232 X 2, RS485 X 1(optional)Micro SD(TF) card supports up ... rail slot(optional) Rugged WinCE computer with WiFi, Bluetooth, LAN, RS232, RS485, 3G, GPS optional