Westell VersaLink 327W 4-Pt ADSL 2/2+ 802.11b/g Modem/Router - WES327W

The Westell 327W is an ADSL combination adsl modem and wireless router with 4 port switch.

This first and foremost requires an ADSL set up through your local phone company. Once an ADSL protocol is established then you conect your local phone line to the unit and then from the unit to the computer via the USB cable. ....or...through a passthrough cable ( <---must be )......or...through the wireless connection

Once the initial set up is performed then you will be able to set-up the wireless connections and add 4 more computers to the switch ports if you need to.

At the bottom of the of the linked page is a zip file for the set-up manual...the quick user guide is included so follow the instructions.