I purchased this from [...]about 1 year now. I'm using Windows 2000 Professional. The card worked fine for the first week. But ever since, I get "poor" connections, or multiple annoying interruptions. It absolutely drives you crazy. Dial up works better. Its suppose to give you 54Mbps, but the highest I get is 36Mbps from my 108Mbps router. I have tried the tech support, but it was futile. I was hanged up upon twice, and really got nowhere from them. They only have 1 driver for this card that is almost 2 years old. They finally said sent it back to us at your expense, and we will send you a refurbished one. That is horrible. I tossed the card in garbage can. I purchased LinkSYS and it works like it should.Bottom line, don't waste your money on this product.