Description: Brand new and high quality Determine defects through various sound coding with built-in speaker Suitable for both ISA bus and PCI bus Diagnose motherboard signal showing the problem of CPU, memory, graphics card, etc... The POST code display consists of a dual dot hexadecimal matrix reading as the display's Power On Self Test (POST) status codes Supports power function indicator -- +5V,+12V,+3.3V and -12V (When the indicator light is on to indicate that its respective power is good, otherwise to indicate that its respective power is not working.) Fully compatible with all motherboards with PCI and/or ISA bus slot Self-checking remote display function Dual POST code display, the user can read the POST at the PCB component. It is easy to see the POST code when the user plugs the POST card into the computer system. Recall previous POST numbers by pressing a button Dimensions: 90mm x 82mm Quantity: 1PC Package includes: 1 x Main Diagnostic Card 1 x Ribbon Cable