I purchased this cable to connect my Xbox to my PC. My Internet is delivered via a Dongle on my PC and this cable allowed me to connect to my PC and gain Xbox live.
The cable just plugs in simply and then you just have to alter your Internet settings on the PC. In all fairness if you have instructions to follow its quite simple and my Xbox Live was up and running in no time.
Ordered this cable for My XBOX 360 on Friday, arrived Wednesday, Couldn't believe the price when I found this one, because others I had looked for starting at £34.99. In all worked perfect for my XBOX 360 have loads of wire left, and the price is great.