Terminate your Cat5 cables to the exact length required 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 StarTech.com's lifetime warranty. For best results, we recommend that the connector be installed using StarTech.com's CTK400LAN" text="CTK400LAN" title="Professional Network Installer Tool Ki or RJ4511TOOL" text="RJ4511TOOL" title="RJ45 + RJ11 Strip & Crimp Too. The StarTech.com Advantage - Convenient 50-pack for bulk Cat5e field terminations - Terminate your Cat5e cables to the exact length required - Guaranteed reliability