Pc Motherboard USB & PCI Analyser Diagnostic Card Tester Laptop Diagnostic Card can diagnosis the motherboard signal which show the problem of CPU, Memory, display card and so on Built in LED display on the card allows easy view inside computer cases. Dimension of cards: L8.5 x W7.0 x H1.4cm Weight: 80g Package included:1 x PC Diagnostic Card, 1 x USB cable