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 (QG diagnosis) of testing the computers besides the traditional Bios POST code Great for onsite technicians, computer admin and home/office personal uses Allows the users to test the hardware errors + testing the computer working stability in a matter of minute This is an advanced PC device that is capable of testing the PC computers with different types of CPUs, including ALL series of previous and latest / for AMD / Cyrix CPUs It can test the components of computer main board working or not and test the initialization of the system hardware, such as: System Chipset, CPU Initialization and Registration, HDD Controllers, System Cache, Extended Memory RAM, Keyboard/Mouse Controller, Sound and LAN Controller, Video Memory and Controller etc. Colour:Photo Color Material:plastic Package Contents: 1 x Diagnostic Test Card Set 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.