The operation is also very good: In the rearward connections permanent devices fit as keyboard / mouse / webcam etc., which holds the top two sockets free for USB 2.0 sticks.
Unlike my USB 3.0 Hub anchor I have found no compatibility issues, did not matter which port is connected to the hub.
The only "drawback": The unit will be very hot, even if only keyboard, webcam and a remote receiver are connected. Loss of function, however, were not to notice, therefore 5/5 stars.