Geekworm 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 Geekworm Embedded Armor Aluminum Alloy Heatsink (P165-A) is only designed for Raspberry Pi 4 Model B 1GB/2GB/4GB/8GB Version, ultra-thin embedded heatsink with ONLY 7mm thickness. User manual, refer to WiKi page search 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, for example: X825(ASIN:B07VXF2HJG), X857(ASIN:B085HG7ZLJ),X750(ASIN:B07VPWFK9H) to slove the raspberry pi 4 overheat problem.
[Update]We only keep the M2.5*5+4mm, M2.5*5+5mm, M2.5*13+6mm spacers in the P165-A packing list, due to the Raspberry Pi expansion board usually with 12mm or 20mm height, the three spacers combination is enough in application.
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.