Wondering about the practical data speed limits of copper Ethernet in a home network?
20180831/DuckDuckGo what is the fastest theoretic ethernet speed over
copper
20180831/DuckDuckGo
20180831/https://www.10gea.org/ip-bandwidth/ethernet-over-copper-vs-fiber-ethernet/
20180831/https://en.wikipedia.org/wiki/Ethernet_over_copper
Nevertheless, I found some interesting articles on Ethernet over copper. Yes, it can be a thing that your ISP gives you the same Ethernet format data at your demarcation point.