REES52 Raspberry Pi 4 7mm Embedded Heatsink with Fan (P165-A), Raspberry Pi 4B Armor Aluminum Radiator with 5V Cooling Fan Compatible with Raspberry Pi 4 Model B Computer and Pi 4

This Embedded Armor Aluminum Alloy Heatsink is only designed for Raspberry Pi 4 Model B 1GB/2GB/4GB/8GB Version, ultra-thin embedded heatsink with ONLY 7mm thickness. User manual,please refer to raspberrypiwiki (P165). Supports to cooling down the Raspberry Pi 4 board when using the Pi 4 expansion board(do not support PoE board); It is compatible with Raspberry Pi 4 expansion board. Consider different Raspberry Pi 4 expansion board has different height after installation, we add a variety of screws and copper spacers with different height as follow: 8 x M2.5x5 +5mm Spacers; 4 x M2.5x13 +6mm Spacers ; 4 x M2.5x13 +6mm Spacers ; 4 x M2.5x14 +6mm Spacers ; 4 x M2.5x15 +6mm Spacers ; 4 x M2.5x16 +6mm Spacers. Raspberry Pi HAT positioning hole is M2.5 internal thread; (this design is convenient to fix), use good quality mute 5v cooling fan, don't worry about the noise of fan. Supports the installation of 25mm fan; Cooling fan can be added when the heat dissipation of a single aluminum heat sink is not enough, so that all Pi 4 heat dissipation problems can be solved.