Considering the price I thought this was a good way to have a "back door" with keyboard access to Rpi Zero - in case of network failure etc I have one Hat with USB sockets that you can plug the dongle into and it works great. Take the same Rpi and dongle, but this USB hub cannot be used - the keyboard is never found/active. And I'm not going to run the Rpi Zero at 2.5A - by the time it hits 1A, it's already too hot. EDIT: In the same setup I can use my USB hat with 3 USB outputs (regular size) and they work great. Using this device on the same RPi will not work if the same dongle is plugged into it. Hat that works: https://smile.amazon.com/gp/product/B01IT1TLFQ
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