Note: This product is a professional maintenance product. Do not it if you 't understand it. Inserting the wrong port may the diagnostic card to burn. In addition, there are many kinds of motherboards in the world. The diagnostic card is not with all motherboards. If the diagnostic card is not with the test motherboard, the diagnostic card will not run out of codes, the motherboard problem cannot be diagnosed. It is not the diagnostic card cannot work. Colour: Black Material: PCB board + electronic components TL631 Pro interface description: 1: LPC1 shared high-speed channel = to the motherboard 2.0 small pin interface, 2.0 module (Module expansion LPC3 interface can notebook MINI PCIE conversion card, A-DEBUG conversion card, notebook DEBUG-CON. -DEBUG). 2:PCI high-speed channel = support all PCI slots. 3:LPC2 shared high-speed channel = to the motherboard 2.54 pin interface, -DEBUG. UART1, JDP, -SPl. 4:PCIE X1 high-speed channel = support without PCI motherboard (other do not support). 5:3VSB indicator, to detect whether the is normal. 6: reset indicator, to detect whether the motherboard reset is normal (only when PCI or PCIE is inserted) 7:CPU indicator light, to detect whether the CPU module is normal. 8:DRAM memory indicator, to detect whether the memory module is normal. 9:VGA graphics indicator light, to detect whether the graphics card module is normal. 10:PCH south bridge indicator light, to detect whether the south bridge module is normal. 11:DP decimal , CLK signal display. 12:DP decimal , FRAME frame signal display. 13:threading hole Package Contents: 1 x TL631 Pro Diagnostic Card 1x 2.0 modules 1 x wire Only the above package content, other products are not included. Note: Light reflection and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.