Basically, if it's the same as what Tony Turbo's got You bin your ADSL modem, and they supply you with a cable modem / wireless router in one. Basically, the ethernet cable goes into an ethernet socket on your pc (most motherboards have them near the usb sockets, depending on machine), and then into the modem. Thus giving you consistant and slightly faster connection. You then setup the wireless network, and connect laptop's etc to it.