Even just 5.5mm x 2.1mm

Although x 2.5 provide the PoE adapter according to the description 5.5 mm mm plugs / sockets, there are only 5.5 mm x 2.1 mm, as with all others. The you can buy where else cheaper.
The RJ45 connectors are also rather thick and the thin power cord. So I can recommend in case they even know if you would need with the other connections.
Overall very disappointing.