How does the wallmount work? It's powered by a USB C port on the back, is there even a wiring standard for in-wall 20W USB? It would need something like this to function on an existing PoE network. https://store.ui.com/us/en/products/uacc-adapter-poe-usbc but it only goes up to 10W. Can it even use the wired networking half of such a setup?