An alternative was needed, most other manufacturers with other chipset. This one has a Realtekchip and it runs since 2 weeks everything is as it should be. The 8dBi antenna 100% connection quality at 100% signal strength, very good.
The driver utility is also OK, it is stable and offers sufficient settings.
The stick is ansich relatively small and light, so it fits well on most USB hubs when the distances between terminals are not too small.
So at this stick, anyone can access, for the price you get a properly functioning Stick with software corresponding thereto.
PS: kudos to Amazon, WITHOUT Premium Shipping receive the very next day.
Operating system is Windows 7 64-bit, while the drivers from the CD function all right, have nevertheless subsequently charged the latest by the manufacturer.