I bought this
https://www.amazon.de/gp/product/B071XL7N2C cable and connected an usb stick as prove of concept.
I thought it would be nice to have an angled micro usb plug, the downside of this is that it hides the
audio jack.
As opposed to a normal mounted stick the leds of the stick keep blinking most of the time,
whatever that means. Could that be related to the silly restriction to use media transfer protocol
imposed by android 6? The problem with that is I don't know if file transfer is completed.
It's automounted as extsd.
If the powered cable is plugged into Max2 a wakeup is triggered and for a short time the load
symbol appears. Some active usb hubs promise to prevent any power reflow to device, so I wonder
if that would be better than a plain cable. In any case the device gets a signal that something is
plugged in despite the fact no usb device is actually present.