Features: 100% Brand New and High Quality Be used to test motherboard problems. Diagnostic card main function is to display the mainboard BIOS self-check program code， through see display code contrast instructions and find the fault location. 8 LEDs indication， easy to read LED Display on the Display， LED displays show diagnosis result of motherboard. Especially helpful to pinpoint the problem when power on the computer and find no display or machine hangs up. 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. Fully compatible with any kind motherboards which has the PCI and ISA bus slot. Interface: PCI Style: 4 Digits Color: Red Size: Approx. 7.9cm x 5.8cm x 1cm (LXWXT) Quantity:1Pc Net Weight: 35gPackage Includes ● 1 x PC Analyzer Card● 1 x User Manual