Linksys Wireless-G Router for ATT&T/Cingular 3G/UMTS Broadband WRT54G3G - Wireless router + 4-port switch - EN, Fast EN, 802.11b, 802.11g LAN Ports - 4 10/100 Mbps RJ-45 WAN Ports - 1 10/100 Mbps RJ-45 Firewall - SPI VPN Support - Yes PC Card Slot -- for Sierra AirCard 875