[bradtheappguy]

This comment makes me feel old. The 2/3 sized cat5 jack is actually an RJ11 - what we used to call a 'phone jack'

[kfarr]

Lol yeah "legacy ethernet cable" cracked me up, it's a phone jack :)

[ProZsolt]

RJ12 is a thing: https://en.wikipedia.org/wiki/Registered_jack#RJ12

The jacks official name for the jack is Modular connector[1]. 6P6C for RJ14, 6P2C for RJ11 and 8P8C for RJ45 (what you described as cat5 jack)

[1]:https://en.wikipedia.org/wiki/Modular_connector