USB is not enough for Galaxy Tab, mount slightly askew

I can not share the positive experience. The first part went back without function test, because the socket on the holder slightly oblique sat in the solid state, sometimes more, sometimes less, depending on the socket. The problem: when I splicing the holder at your desk or verschraube and then turn the cube on it until it is firm, it is wrong and simply wrong for my perception on the table. The replacement was the same problem, so probably normal. Ok, done function test and the next disappointment: what comes out of the USB ports, not always the battery sign of insufficient power supply is sufficient for my Galaxy Tab, for connection. In addition, in a can the metal contacts were quite wrong, so I was worried there at all reinzustecken a plug without these might continue to bend or worse. As promised / expected USB functionality was not there (failures?) And the other points for the price are not ok, the part went back. Otherwise very visually but really nice to look at.