The PoE to USB solution is a "PoE splitter" and they're cheap and very useful. The website says the device has a USB-A connector for power. That's a bit of an odd connector to power a device from (since A is supposed to be a host port). Is that port really an A?
EDIT: I cannot respond to the child comment, but yes: The Device has a male USB plug, and then the cable goes right into the device, no receptacle on the device.
I was going back and forth on this for a long time, but ultimately I decided that a cable entering the device looks sleeker than a plug that is plugged into a socket on the frame.
Also makes it easier to place it on the included stand.
The big part, is the power is delivered at a pretty high voltage, so you are going to need a buck converter to get it down to the 5V usb expects.