The CPU bracket is securely fixed with screws and a back plate for enhanced stability. Designed to prevent loosening caused by long-term use and high-temperature aging of plastic components. Helps prevent motherboard deformation, extends motherboard lifespan, and improves contact between the heatsink and CPU. Compatible with radiators that use round brackets. Suitable for Intel series CPU cooling fans. Product Name: CPU Radiator Fan Rack Kit Material: ABS Color: As shown in pictures Type: Universal backplane, compatible with AMD AM4 (Note: AM4 and AM3 bracket spacing and mounting hole sizes differ; not universally compatible) Compatible motherboard chipsets: AMD AM4 B350, X370, A320, X470 Installation hole distance: 90*54mm