The Network Cable Tester is a handy device designed to test the connectivity of UTP, STP, and coaxial cables, as well as modular RJ45 cables. This computer cable tester is essential for determining if a cable is properly connected and functioning correctly. With its RJ45 connectivity, it is specifically tailored for testing network cables used in computer systems. The compact and user-friendly design of the cable tester makes it a convenient tool for troubleshooting and ensuring reliable network connections.