At first I liked the Hub very good, the processing makes a good impression. I have used it with a power supply. But now I can only advise against a purchase. Slot slot has failed, the devices were no longer recognized. Only the number 7, then 6, then 5, ... Even just a mouse and keyboard could be no longer connected via the slots on my Tablet. I bought at the same time another identical 4 Port Hub. Again, the same behavior occurs.
