Well with Windows 7 - 32 bit, not with Windows 8 to 64 bits

This device improves the reception including Wifi to connect to Hotspots (free, sfr, etc) when you are on the go.
The improvement is not as dramatic as it is announced but the effective range can be 500m.

However if I was satisfied with a laptop using Windows 7 - 32 bit, this was a calamity with a laptop using Windows 8-64 bits: did not work and disorderly my installation with other wireless adapters, not very easy to uninstall, I had to reinstall everything thereafter.
The pilots were probably not suitable for Windows 8 to 64 bits, but to date have not found them.