RJ-45Cat6EZ is a Cat6 EZ RJ45 connector which allows all eight strands of a UTP cable to pass through the head of the connector. Then using the TOOL-EZCRIMP you can crimp and cut off the excess copper. This ensures a strong connection and eliminates possible packet loss on partially crimped cables. The RJ45-Cat6EZ connector is only compatible with pass through crimpers such as TOOL-EZCRIMP.