The Linksys Wireless-G Router for Mobile Broadband is really three devices in one box. First¸ there is the Wireless Access Point¸ which lets you connect both screaming fast Wireless-G (802.11g at 54Mbps) and Wireless-B (802.11b at 11Mbps) devices to the network. Second¸ it is a built-in 4-port full-duplex 10/100 Switch to connect your wired-Ethernet devices together. Connect four PCs directly or attach more hubs and switches to create as big a network as you need. Thirdly¸ the Router function ties it all together and lets your whole network share a mobile broadband Internet connection (requires a mobile broadband data card). Alternatively¸ you can also connect a cable or DSL modem to the Ethernet port and access the Internet via your available broadband service.""

Specification:
Linksys Wireless-G Router for Mobile Broadband for use with AT&T
VPN Passthrough: Yes
Cabling Type: UTP CAT 5
Weight: 12.35 oz
WAN Ports: 1 10/100 Mbps RJ-45
Ports: "1xRJ-45 10/100 WAN Ports¸ 4x10/100 RJ-45 LAN Ports¸ 1xPower Port¸ 1xSMA Port"
Dimensions WxDxH: 6.69”x 1.3”x 6.69”
LAN Ports: 4 10/100 Mbps RJ-45
VPN Support: Yes
Standards: 802.11g/b
Warranty: 1 year
Firewall: SPI
LEDs: "Power¸ Ethernet¸ Wireless¸ DMZ¸ Data Card¸ Internet"