Optimal Shop 4 Digit PCI and ISA PC Computer Motherboard Power Diagnostic Analyzer Post Tester Card

PCI and ISA 4 digit PCI analyzer:standard PCI and ISA interface, easy access to desktop PC., Standard PCI and ISA interfaces for easy access to desktop PCS.4 digit display,the first 2 digits indicate the current error code,and the last 2 digits indicate the previous error code., After power on self test,the card will quickly display the error code,the provided error code table allows you to easily understand the error details., Compatible with all mainstream motherboards.Support code search function., Support motherboard bus speed test.