Review on 5-Pack RJ45 Coupler Ethernet Extension for Cat7/Cat6/Cat5e/Cat5 Network Cable - Female to Female Network Connectors (Blue) by Andrew Grant

I needed to move my router from a closet to a more central location. Since the connection goes into the house and all wired rooms end in a closet, I had to extend 5 cables. They did their job and I have no loss of signal. I even used these 3M stickers to stick them on the wall. Hopefully I won't have to move them in the next few years.