I am having a Belkin 4 port USB hub and an Android 4.1 tablet Model M736 made by Kocaso. I am trying to connect USB keyboard and a USB WiFi dongle to the hub and not able to see either of the devicces. Tried only the keyboard connected to the hub yet not able to recognize that a keyboard exists. But individually the devices work when connected directly to tablet. Could it be that the USB hub isnot able to support enough power when connected to the tablet.