How does a Cat 6 patch cable affect your network? It's like when you replace one blocked pipe in your plumbing line and suddenly the flow increases, the transfer is more fluid and the whole system is improved. The RJ45 High Performance Category 6 UTP Patch Cable is the perfect performance upgrade. It is used to replace any Cat 5 cable that fails to support 100 Base-T or Gigabit Ethernet and comes with RJ45 male-to-male connectors and a snagless molded strain relief.