Description: 100% brand new and high quality Determine defects by different sounds coding with built-in speaker Suitable for both ISA bus and PCI bus Diagnose the motherboard signal which shows the problem of CPU, Memory, video card, etc... The POST code display is made up of a dual, dot matrix hexadecimal read-out that display's Power On Self Test (POST) status codes Supports the power source working indicator -- +5V,+12V,+3.3V and 12V (When indicator LED is on to indicate its respective power is fine, otherwise to indicate its respective power is failing.) Fully compatible with any motherboard with PCI and/or ISA bus slot Self checking remote display function Dual POST code display, user can readout the POST at PCB component. It is easy to view the POST code when user plugs the POST card in computer system. Recall previous post codes at the touch of a button Dimensions:90mm x 82mm Quantity:1PC Package includes: 1 x Main Diagnostic Card 1 x Ribbon Cable