
I'd like to start by saying that I've been a telecommunications, coaxial and network cable crimper for 31 years. I'm not bragging, it's just my job and it's a boring job :-). I bought 100 of these connectors for a home network of security cameras that I installed. The concept of these connectors seemed great. My eyes aren't the best anymore and I liked the fact that I could easily see the wires on the cut side of the connector before crimping and check my pinout before crimping. I used a pair of small pliers and a diagonal pliers that had been in use for about 12 years and crimped 1000 ends. With these plugs I get at least 2 bad ones for every 10 plug crimps. The wires in the plug are strong, heavily crimped, I can't pull them out. I didn't install them with LAN Explorer to see which pairs are bad, I just truncated and recreated them for this homework. I suspect it's the number of wires from each pair still sticking out of the plug after cutting to prevent mating with the socket, but I can't be 100% sure. The plug just always seems very tight in the switch or device when I plug it in. I use the smallest diagonal pliers I have to trim off the excess. Another great concept and great for home projects or small jobs. However, a failure rate of 2 out of 10 is a big problem on a job where you're crimping 2000 ends.