ADAFRUIT INDUSTRIES USB MINI HUB WITH POWER SWITCH - AN OVERVIEW

As a result of that, USB-OTG equipment don't have any isolation amongst their unique source as well as their USB ports.Older variations of USB forbid downstream gadgets from sending power back to the hub. USB-OTG changed that by allowing products be the two USB hubs and USB units.Power Delivery indicates the docking station is both of those powered