The GC Electronics Lan Test Kit 2565511 is a network modular cable tester designed by Hobbes Innovations. It is a versatile unit capable of testing various types of cables including Ethernet Cat 5, 5e, and 6, as well as coaxial BNC, RJ11, RJ12, and RJ45. With a compact cable length of 1 foot, this tester is ideal for troubleshooting and diagnosing networking issues. Made in Taiwan, this model ensures reliable performance and accuracy in detecting faults and connectivity problems in your computer network cables.