300Mbit never be reached

we arrived with our laptop so far max 54Mbit. Therefore, it has indeed been worthwhile, but the 300Mbit specified has the that although it would never displayed / achieved and give our fritzbix! usually he achieved something between 60- 150Mbit. We are of the Fritz box never farther away than max 6m and it is more than 1 wall between what so obviously speaks for no particularly good Empfangssärke. Thus, it might have done even the 150Mbit Nano Stick in any event not so far out projects like this one!
For the price of 10, although OK; who it but needs more quickly and actually wants to achieve 300, should definitely buy something else!