The board has a power on/off button, a restart button, a startup light, a hard disk read/write light, and a motherboard socket, which can be used to conveniently turn the computer on and off and observe the computer startup status without a chassis. Easy to use: Just plug the module into the 9-pin slot on the motherboard to use it. Strong compatibility: Supports most motherboards, and almost all motherboards with 9-pin startup slots can be used. Small and light: Its compact size and light weight make the launch board easy to carry and install, and it does not take up too much space, making it convenient for users to use in different scenarios. Applicable:for 9Pin PC Motherboard Colour:Blue Material:PCB Package Contents: 1 * Computer Startup Test Board 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.