Easy Install: keystone based patch panels inserts with punchdown blocks jack and punch down on a keystone jack much more easily than in a 110 patch panel, especially for limited rack space. Easy Repair: Keystones of cat 6 patch panel are punch down, just as an isolated unit, rather than 24 punch downs attached to the same frame. If you have trouble with a port, you can snap it out for inspection and then repair or replace it.