Yeah, You need to have a Wireless card in one or both of your computers. The computer that doesn't have a wireless PCI card in it will get hooked up to the network by a RJ-45 ethernet cable running from the switch on the back of the wireless router to the network port on the back of the computer. The RJ-45 cable running from your DSL, or Cable modem will get plugged into the WAN port on the back of the router. If both computers have wireless PCI cards, still plug the modem in the WAN port, but you configure your computers to connect wirelessly to the router. Both ways you are going to configure your computers so they connect to the internet through a network hub, when you go into setup network in the control panel.