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It is a pretty good product, and has worked for me for a while. Since they discontinued them, you could probably buy one from eBay or Amazon.

...But I wasn't too happy with this item. It works sometimes, but I easily lose connection. My signal is never that strong, and I get disconnected while in the middle of many games.

I heard that Belkin routers are incompatible.
That's probably why they are so cheap.

I've heard so often that routers/modems are incompatible with this... incompatible with that... I don't know though, I think it depends on just how you've got everything configured as I've never had issues with these "incompatible devices" being magically compatible with eachother. But anyway...

Long-story short, your PC don't work so either order that USB adapter or get yourself a linksys wireless router and you'll be online in no time. The choice all depends on what works best for you. If you plan on fixing your computer and using it online, then I suggest the router... otherwise if you will only be using your Wii online, then go for the adapter if it's cheaper, but I'll bet a router can be found for less than the adapter.