... printer make receipts collection faster; Smart communication modes: Modem, GPRS or CDMA ,LAN Support optional components, such ... current:1.5AConnectivity2 telephone port,1 RS232 /Pin pad port ,1 Ethernet port 1 USB HOST,1 USB DEVICE and 1 PINPAD portMagnetic ... ),asynchronous ( 33.6Kbps) (55.6Kbps optional)CommunicationmodeModem, , Ethernet TCP/IP(optional), WiFi (optional)GPRS or CDMA (optional, ...