Think of the Linksys Wireless Broadband Router's as a kind of "splitter" for your Internet connection. Just connect your Modem to the Router, and all the computers in your household can share the Internet -- all at the same time. You can connect your home computers directly to the Router with Ethernet cables, or put wireless network adapters in them and communicate over radio waves, saving the trouble and expense of running cables through your house.
1.800.814.5410 
858.764.8900 M-F 6am-5pm PST
