This bulk pack of cat 5e rj45 stranded modular plug connectors contains 50 category 5e rj45 ends for stranded wire field termination the crj4550pk cat5e plugs are backed by startechcoms lifetime warranty for best results we recommend that the connector be installed using startechcoms ctk400lan or rj4511tool 50x cat 5e rj45 modular plugs designed to fit all cat5e patch cables applications field terminate your cat 5e patch cables warranty information warranty lifetime physical characterist