Features module dimension: 60x60x12mm, industrial dip pin interfaces(1x 30 pin, space of 2.0mm ) the unit comes with rich communication interfaces and is integrated with router/4-port switch/wireless ap/firewall 4x 10/100m ethernet lan, support 10/100 base-tx 1x 10/100m ethernet wan, support 10/100 base-tx it is compatible with ieee 802.11b/g/n wireless ap, 11n meet 2t2r, up to 270mbps wireless high-speed data rate. 1x usb2.0, host type a interface, compatible with hsdpa/hsupa/wcdma, edge, gprs, evdo. Support various usb 3g cards in current market. 1x rs232 serial port, ttl level, support command line as configuration control interface. With different access modes: ethernet/wifi/3g provide robust routing, support dhcp server and cpe, ip address, mac address, domain name address filtering, static ip routing, rip v1/v2, nat, napt, dmz, built-in firewall. Support upnp, static routing, vpn ipsec. Provide advanced security features, including: wep64/128, 802.1x, wpa, wpa2, wds, wpa1/2-psk, wpa1/2-802.1x, ip address/ mac address/ port filtering to protect wireless communication at the source and ensure security for data transmission. Single power supply: dc/5v, maximum power consumption is less than 2w.