Thermal Grizzly AM5 M4 Backplate

The AM5 M4 backplate is an optional mounting plate that replaces the original AM5 backplate. Some CPU coolers use a mounting kit that comes with M4 threaded screws. These are not compatible with the UNC 6-32 thread used on the AM5 backplate. With the AM5 M4 backplate, appropriate CPU coolers, especially AiO watercoolers, can be used.