The Logilink CP3053U is a professional grade network cable tester designed to test Ethernet cables. It is capable of verifying cable continuity, testing and measuring cable length, identifying fault locations, and displaying Ethernet pin assignments. The device is equipped with a colorful LED display, a clear numerical keypad and four ports for connecting cables. The tester is designed to operate on AC/DC power with an auto-off feature. Additionally, the CP3053U has the capability to run diagnostics in various cable configurations, such as straight-through,crossover, and multi-point pinning.