I bought the card today, because my 10/100 Mbit LAN port on the laptop was too slow. Installation was smooth and fast, everything fits and suits. Under Win 7 64 bit everything was the same - and without I-net connection - detected and automatically installed ==> and functioning properly. Data Transfer Rate with me about 45-50 MB / s (in the network with NAS, Switch, Cat5E Cat6 cables +)