1、Metal positioning pin is not easy to wear, and the multi-point composite positioning pin design can be compatible with a variety of models at the same time, also it is easy to fix the mobile phone motherboard. 2、Compact 7-shaped press button is designed to prevent any manipulation of the phone's motherboard by tools such as soldering irons or blades. 3、Innovative dovetail buckle design is a powerful guarantee for versatile models of more than 9 models, which can hold the phone and secure the motherboard. 4、With a variety of IC glue removal groove, the surface of the steel sheet is engraved with the laser marking corresponding to the IC model, which is convenient for identification and can cool down the chip IC. And hard disk strength beam is designed to hold the motherboard on the back of the hard disk, so that the user does not deform due to heating when the hard disk is removed. 5、PU strength beam is designed to hold the motherboard on the back of the CPU, so that when the user disassembles the CPU, the motherboard does not deform due to heating. And the weight-increasing steel plate lifts the weight of the fixture itself, being not easy to slide when the motherboard IC component is removed, having the function of absorbing heat and dissipating temperature on the synthetic stone panel.