This Notebook Combo-Debug card uses a 4-layer PCB design to ensure very stable signal quality. Meanwhile, it applies tantalum capacity to ensure good power supply. So this debug tab is more suitable to use in a bad environment. It supports three bus interfaces: MINI PCI, MINI PCI-e and this product is easy to use and designed with good stability. Ideal for enthusiasts and engineers to test and repair your computerExcellent and useful tool for repairing your partner's notebook, easy to useDiagnostic signal that show the problem of CPU, memory, card and so on. The POST (Power On Self Test) tab displays error after startup makes you know the error details easily. LED displays shows the diagnosis of the motherboard. Color: Yellow+BlackMaterial: PCB+Metal Size: 5x3cm Package Contents:1 x Mini PCI PCI Analyzer PC-e1 x Chinese & English ManualNote: For better products, we can improve the products, so the appearance of different batches of products may be different, if you keep in mind, please be careful not to! Only the above package content, other products are not included. Note: The light and different displays may cause the color of the item in the picture to be slightly different from the real thing. The allowed measurement error is +/- 1-3cm.