Я тут набрел на очень интересный обзор ethernet патча за косарь зеленых. И интересен он не столько самим обзором, сколько несколькими абзацами.
> I’ve spent a decent chunk of my professional career setting up networks in data centers. From setting up VPNs, network segregations, Cisco firewalls, and even crimping the cables myself. You name it, I’ve probably done it.
...
> Years ago, I grabbed two different generic brands of Ethernet cables and stream some familiar songs off my NAS. I also tried a few more from different price points – and sure enough, there were differences in tone and clarity. It wasn’t better or worse – just different. And this was with an untrained ear.
У нас есть тут сетевики-аудиофилы, а?
https://audiobacon.net/2019/11/02/the-jcat-signature-lan-a-1000-ethernet-cable/