Review on 6-Pack RJ45 Coupler Ethernet Cable Extenders, Cat7 Cat6 Cat5 Cat5e Network Coupler Adapter, Female to Female in-line, Black by Amanda Ellis

I usually use these to fix some broken ethernet cables. I will cut the cables where there is a damaged spot and add a new RJ45 connector and discard it as an intermediate step. It's a quick and easy fix for repairing damaged Ethernet cables when they run through walls or tight spaces that require too much work to redo.