I need a ethernet cable for an xbox to cable modem.

I also wish to run my xbox and pc at the same time i have no network card. I have SB4200 Motorolla Cable Modem usb conected do i need to buy a network card and router. Or someone says i can use a usb hub. Does anyone hav any advice

If you want to run both at the same time, then I would defintely recommend picking up a router. Wired ones aren't that expensive and neither are ethernet cards.

agree