Simply attach the Ethernet ports to the wall and then add keychain rings to RJ-45 cable connections to create the key hangers. Full instructions on making your very own can be found over on the ...

I'm trying to run cat5e to a POE WiFi access point in the ceiling. So on one end of the cat5e cable is a standard RJ45 wall jack (in the office), and on the other end is a male RJ45 connector ...

Basically, you just cut off an RJ-45 cable and attach it to your key ring, then mount a few ports to your wall. Plug the severed cable into the port and your keys will hang from it securely.

That includes situations such as hotels where there is bad WiFi but an RJ45 wall connector. On the other hand, the media bridge mode can turn a non-WiFi device into one with WiFi.