AM4 CPU heat sink bracket.For am4 motherboard and clip-on cooler . | The pin has a small hole corresponding to the main board, which is firm and practical.90x54mm mounting hole distance with 4 screws. | AMD CPU Fan Bracket Base for AM4(Motherboard chipset B350 X370 A320 X470). | For hook-type air-cooled or partially water-cooled radiators (B1220/B240). | 90 days no-questions-asked return policy. If you are not satisfied with the AM4 CPU fan bracket ,please let us know and we will offer you the replacement or refund service. Click the Orange Button to start your shopping trip.