Zeeshan Zakaria <zishanov at gmail.com> writes: > making use of the fact that both Cat5 networks and BRI ports > don't use all the 8 pins, so why not use extra wires in the cable for > something useful instead of wasting them. For Ethernet, this is only true for 10Mbps and 100Mbps. Gigabit and up uses all four pairs. /Benny