Ensure all of your cables are functioning properly with the Intellinet 351911 Cable Tester for BNC, USB, RJ-11 & RJ-45 Cables. This cable tester tests BNC, USB, RJ-11 and RJ-45 cables with a simple one-button test. This cable tester also tests patch cables, installed wiring, and shielded and unshielded LAN cables. This cable tester also features LED's, which indicate faults and connections. This cable tester also provides a 600' test distance, so never have to worry about not being able to reach your cables.