Pros: it didn't work at the beginning. Just before I was going to return it, I did a full format and works perfect on vista, win2003 and xp since then.

Cons: slow speed. But you pay what you get.

Pros: I love MS Elite keyboard, but that experience doesn't apply to the product I got here.

Cons: The product I got quite a few keys doesn't function. Key: R, T, B, V The extra cable for USB port also doesn't do its work. This is another surprise.

Overall Review: Looks to me this product might be used product, even though it still looks new. I ordered it as a backup and just started to use it a few days ago. Unfortunate I have passed the 1 month warranty. It's time to buy a Elite from another seller.

Pros: supposed to be a great product

Cons: made a big mistake. Didn't pay attention for the difference between ddr and ddr2. It doesn't work on my dell inspiron 8600. Now I have return it and order another one.

Comments: works fine with xp. Tried two machines with Win 2003. All crashed.