YUEYOU 4-Digit ISA PCI Powerful Diagnostic Tool PC Computer Motherboard Analyzer Tester Diagnostic Debug POST Card The POST Analyzer could display the error code by the result of POST Determine defects by difference sounds coding with build-in speaker Easy to install, just plug into the PCI interface, intercept and hex the code of your booting computer The diagnostic card can be compatible with AMI, AwardPhoenix at the same time Size: 3.42 inch(L) x3.19 inch(W) x 0.39 inch(H)