The Fluke Networks DSP-4000 Cable Analyzer is a high-quality tool designed for testing RJ45 cables. This model is known for its reliability and accuracy in detecting various cable issues. Made by the trusted brand Fluke, this cable analyzer is a trusted choice for professionals in the field of business and industrial testing. With a fast shipping option available, this mainframe-only version is ideal for those looking to quickly obtain this essential piece of equipment for their work.