Description of Cat6 Keystone Punch Down Network Black
Category-6 (Cat6) Keystone Insert Jack. Easy connection to network cables. To be used with keystone wall plate or panel. Compatible with both T568A and T568B wiring patterns. Compatible with 23 or 24 AWG Solid Wires.
Needed for color coding our shared server room and bought Jack's keystone key in a different color to visually identify who is on the other end of the line. The quality of these was 100%
I ended up with 2 50ft cables with 4 of them and had to replace all 4 due to mismatch. All 4 were extremely "loose" and everything I plugged into them had excessive play resulting in improper contact in the socket.