This is the MINT condition PC Analyzer / debug / POST Codes tester for IBM & compatible PCs with ISA or PCI slot - It is fit for desktop computer - Four-bit code is displayed - It can diagnose the troubles of not only the Main board but also the card itself - It can prevent the users misunderstood It is compatible with all sorts of the computers including a wide range of Intel flat AMD flat and so on - The cause code is more accurate and reliable - It cannot stop in the course of functioning - Come with a speaker cable and an English user's guide with diagnostic error code lookup