I am using these to make a home-made "stage box" with 4 XLR connectors in it ... in other words to carry 4 balanced audio channels over shielded twisted pair data cable which is much less expensive than purchasing new stuff. They are connected to the end of a length of cable, not in a keystone faceplate, and work magnificently in that capacity. Relatively easy to work with, easy to use, EXCEPT it says tool-less and yet the design begs using a punch-down tool to trim excess wire off the punch-down blocks. I used a razor blade to do that. I was worried the wires may short out against the metal housing but that was not a problem.

High quality metal construction and installs without a crimping tool !

While this product is a good value for the price, it would have been nice if instructions were included stating that a flush cut is needed when trimming excess wire. Without it, I had shorts that were killing my transfer speeds. I also put a piece of electrical tape over the ends to be safe.

They're perfectly fine for a one-off install as in my case, but i wouldn't recommend them for large jobs as it's time-consuming taking the extra steps to ensure there's no shorts.