This am4 backplane is made of high-quality metal copper and ABS plastic material, which has good heat dissipation performance, easy deformation and long service life. | This am4 cpu fan heatsink bracket is designed for AMD AM4 CPU motherboards. | The am4 mounting bracket is designed with round holes and is very easy to install. It is the best replacement for your old or damaged ones. The good heat dissipation ensures the normal operation of the CPU. | The pin of the desktop computer cooling bracket has a small hole corresponding to the motherboard, which is firm and practical, and the back is covered with an insulating layer to ensure the normal operation of the CPU and the safe and reliable use. | This product is for AM4 AMD CPU fan mounting bracket (for motherboard chipset B350 / X370 / A320 / X470) Please note: This product is only for AM4 platforms.