Highlights: Fit for desktop computer and laptop. An advanced computer motherboard CPU ram hardware diagnostic test card with motherboards stability test feature Latest 4-in-1 version with LCD panel extension connector. An extra nice feature of quick test of the computer system stability Can work with/without CPU/RAM on board. Come with extra method (QG diagnosis) of testing the computers besides the traditional Bios POST code method. Specifications: KQCPET6 V8 intelligent diagnostic card. Bluetooth transmission to the phone display (code, meaning and processing method in the "Qiguan easy to use diagnostic card" APP automatically intelligent matching); no longer need manually enter the code into phone. Can be partitioned (by wall to view code or diagnostic results)Diagnostic desktop, laptop, mobile phone, a series of USB smart devices (such as home smart TV, car audio, industrial USB devices, etc.) Diagnostic desktop, laptop, mobile phone, a series of USB smart devices (such as home smart TV, car audio, industrial USB devices, etc.). Interface Diagnostic:PCI,PCI-E, LPC,MINIPCIE, EC,M2,mSata,USB interface diagnosticfunctions. password:1234 Note: The diagnostic card is only an auxiliary tool, the purpose is to detect the motherboard failure through the code, but not all ports (LPC PCI-E PCI) have code output, which has nothing to do with the quality of the diagnostic card, the code is reserved by the manufacturer.The purpose is when the motherboard has a fault. The manufacturer can read the motherboard fault code information in some ways. There are many PCB motherboard manufacturers in the world. Each manufacturer of PCB motherboards is different, and each manufacturer open testing ports are different, Even some motherboards do not provide the code output function of PCI, LPC or PCI-E. This is not a problem with our diag