HDE PC and Network Test Kit - Motherboard POST Analyzer Network Cable Tester & Power Supply Tester The diagnostic motherboard card (PC analyzer/POST card) determines problems with your motherboard Network cable tester can test the connectivity of your twisted-pair straight & crossover cables Power supply tester helps avoid damage to computer equipment by insuring a working power supply This bundle is the perfect tool for anyone who likes to wire their own PC or networking cables! This all in one kit assures you'll find computer connectivity problems at the source