This notebook Combo-Debug-Card uses 4-layers PCB design to provide a very stable signal quality. Meanwhile, it applies Tantalum capacitance to provide good power supply. So this Debug card is more suitable to be used in poor environment. It supports three bus interfaces: MINI PCI, MINI PCI-E and LPC, This product is easy to use and designed with good stability. perfect for IT enthusiasts and engineers to test and repair computer perfect and useful tool for notebook repairing partner, easy to use Diagnosis signal which show the problem of CPU, Memory, display card and so on. Suitable for computers with POST codes output to the parallel port (). The power supply is flexible and can be connected to USB or computer host power. It is easy installation, just plug into the PCI interface. and hex the code of your booting computer. Hexadecimal character display. Detailed & precise LED function table and code Indication table, convenient consulting. It can be fully compatible with 286 to PIV high, medium and low grade motherboards, the fault code is more accurate and reliable, and it not crash POST (Power On Self Test) card displays error after booting makes you know the error details easily. LED displays shows diagnosis result of motherboard. Size:5 x 3cm/5.7 x 5.6cm Note: In order to better products, we may improve the products, so the appearance of different batches of products may be different, if you mind, please be careful not to ! M/M USB cable Length: 50cm (.) System:for 98 SE/ME/NT/2000/XP/VISTA or higher Model Number:Motherboard Post Tester Interface Type:PCI, USB Type:Network Repair Tool Kit Color:As Shown Material:Pvc Package Contents: 1 * diagnostic card 1 * tester 1 * USB cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.