Partial critical USB3 connection

Basically, the plate-making a good, solid mechanical impression. Unfortunately, I have been repeatedly notice that the USB3.0 connection quality is sometimes very poor. Obviously there are problems with the USB controller or the connectors. When transmission frequencies in GBit range (at USB3.0), which was reserved're 10 years ago yes only of satellite technology, the mechanical connections considerable demands are placed, which are probably not always achieved as a result of production tolerances. Since I've already bought several plates of this type (also different sizes) I know the problem already. The latest record bought has even permanent disconnections on (every few seconds) to USB3.0. An USB2.0 the drive is running stable. The current requirement is not a problem for USB3 with 224mA (lt. USBDeview). Therefore once again back to Amazon for replacement and only one star.