Loose connections and inadequate performance

This is an absolute cheap product in every respect.
Packed it came ... not at all. Only in transparent foil. My first article in the Amazon was sent so (power supply and stroke in a box "thrown" and from this, no other packaging).

The USB AB cable was clearly too short and had to be replaced before commissioning. The power supply (as printed) 2A, and not enough apparently. I have a keyboard (Logitech Illuminated), a Logitech Unifiying receiver, and connect a USB-DVI adapter.

Regularly is "failed power". Either is once again the power plug slipped out of the socket (mind you without tension on the cable, it keeps just not absolute), or maybe the performance has also partly simply not enough. This had sometimes even crashes my system to follow.

Even when I, for example, for testing purposes connected a CanoScan LiDE scanner (and all other components of the stroke separated) have the lighting unit has not moved more than 2cm and then canceled.

How will operate 10 USB devices with 2000mA (which probably does not really stand available) is unclear to me. - Even if the plug would hold.

Now I use a Digitus 7-port hub. This provides bombproof contact, the power supply delivers 4A, and it just does everything you followed.