I bought this new for a Comcast Cable Internet connection. It came with a CD of drivers for the USB connection to a computer (from 2004), a printed setup manual, and the hardware with cables. I registered online and found new drivers (from 2007) so I downloaded them. However, I have not been able to uninstall the previous drivers, even after taking advanced steps to delete the keys from the registry that linksys failed to remove after uninstalling. Therefore, I cannot install the new drivers. Also, there is NO WAY TO CONFIGURE THIS MODEM. It does not have a web interface or any software that allows you to configure anything. The only way to use this modem is to plug it in and hope that everything works by default. You can do a hard reset by holding the power button for a long time, but you will never be able to change any of the settings.I think un-configurable hardware is a waste of money.