... 3G modem 3) 3G mobile router 4) WiFi, Built-in battery, DHCP,DDNS,DMZ, NAT Without HSUPA HSDPA Module;Need external HSUPA ... RJ45:1 LAN port, 1 WAN port, USB port for external modem, Micro SD slotProtocol support: TCP, UDP, SMTP, POP, ICMP, FTP ...