Here is the context. An average room (32 square meters) with a box in a corner and the machine that carries the key to a less than 7 meters. In between, there is a chair. Network quality displayed by other sensor is a minimum of about 70% and this key unfortunately does no better than old wifi key Bluestrock 2008 (Realtek chip too), whether under Windows 7 than under Linux. One star because of the hoopla behind supermegaultra options (WiFi N, button, WEP compatibility ...), we quickly realize that we are dealing with a marketing attack and that the key is good only on paper. Ultimately, and regarding the main use primarily (connect wifi), the client would have for his money with a product there 6 years instead of this key.