On the netbook running openSUSE 12.3, and a driver installation was not necessary: Just plug, and then restart the netbook: Already läufts.
Means "iperf" I have a speed test performed, and come to constant values> 93Mbit / s (see screenshots at the product images).
Under Win7 64bit it looks for some reason is different: Although the installation was also automatically, but the speed exceeds the same network and the same configuration never more than 70Mbit / s.