Features: All aluminum heat sink and clear PC material fan material, high heat dissipation efficiency, safety and environmental protections, good heat resistance, and durability. Quiet cooling fan, oil bearing, smooth working,you don't have to worry about noise. Equipped with a heat sink, keep your RPI5 5B mainboard as cool as possible for high performances. The cooling fan runs smooth and quietly, which is beneficial for the heat dissipation of the development board. Can be installed through interfaces. Only for RPI5 5B Specifications: Product material: AluminumAlloy For: for RPI5 5B Size: about 63x43x12mm/2.48x1.69x0.47in Color:As PIctures Fan:Oil Bearing PWM Fan Note: Please allow 0-1cm error due to manual measurement. please make sure you do not mind before bid. Due to the differences between different monitors, the picture may not reflect the actual color, thank you! Package includes: 1PC Cooling Fan