Officially 2.5G can run up to 100m on Cate 5e: * https://en.wikipedia.org/wiki/Ethernet_over_twisted_pair#Variants https://en.wikipedia.org/wiki/Ethernet_over_

Officially 2.5G can run up to 100m on Cate 5e: * https://en.wikipedia.org/wiki/Ethernet_over_twisted_pair#Variants https://en.wikipedia.org/wiki/Ethernet_over_twisted_pair#Var... So I wouldn't be surprised if 5GigE, and maybe even 10, could be done on shorter runs.