![Raspberry Pi 4 / 4B Radiator Cooler Heatsink Embedded Aluminum Heat Sink Support POE and Cooling Fan (P165-B) Raspberry Pi 4 / 4B Radiator Cooler Heatsink Embedded Aluminum Heat Sink Support POE and Cooling Fan (P165-B)](https://ae01.alicdn.com/kf/S9544f67bca0844858b8ec8d936358836Y/Raspberry-Pi-4-4B-Radiator-Cooler-Heatsink-Embedded-Aluminum-Heat-Sink-Support-POE-and-Cooling-Fan.jpg)
Raspberry Pi 4 / 4B Radiator Cooler Heatsink Embedded Aluminum Heat Sink Support POE and Cooling Fan (P165-B)
![Amazon.com: ALAMSCN Aluminum Heat Sink Single Cooling Fan for Raspberry Pi 4 RPi Mini Cooling Fan with Heatsink Set for Raspberry Pi 4 Model B, 3B+/Pi 3 B/Pi 2 B : Electronics Amazon.com: ALAMSCN Aluminum Heat Sink Single Cooling Fan for Raspberry Pi 4 RPi Mini Cooling Fan with Heatsink Set for Raspberry Pi 4 Model B, 3B+/Pi 3 B/Pi 2 B : Electronics](https://m.media-amazon.com/images/I/711vIrBbE1L.jpg)
Amazon.com: ALAMSCN Aluminum Heat Sink Single Cooling Fan for Raspberry Pi 4 RPi Mini Cooling Fan with Heatsink Set for Raspberry Pi 4 Model B, 3B+/Pi 3 B/Pi 2 B : Electronics
![Hi all, I recently installed octopi on my raspberry pi 4 b and I was wondering if I needed a fan. I have a 24 v fan but do I need a Hi all, I recently installed octopi on my raspberry pi 4 b and I was wondering if I needed a fan. I have a 24 v fan but do I need a](https://preview.redd.it/hi-all-i-recently-installed-octopi-on-my-raspberry-pi-4-b-v0-9pluh4na4gz91.jpg?width=640&crop=smart&auto=webp&s=c1815a1a1657a8527491716c86e971f702eb3495)