I've terminated hundreds of Category 6 RJ45 plugs to standard modular plugs as well as charging rail plugs. When I came across this three piece design I thought they might make things easier. I was wrong. I've tried using one of these connectors with a very good quality Category 6 cable, but it hasn't been a very pleasant experience. The wire alignment element is very weak and the pair breaker is not needed and does not work well with solid cables. I think these connectors are better for category 5e cables.