TOOGOO(R) Laptop PC Computer PCI Motherboard Diagnostic Tester Analyzer This motherboard diagnostic card, also named POST (power on self test), is a powerful diagnostic tool for technicians and administrators to troubleshoot various problems of compatible PC, Laptop and notebook by using the 25 pin parallel printer port (LPT) and USB port for power. Description: 100% BRAND NEW! Size (approx): 6 x 5.5 x 1.5cm