I use this fan/heatsink on all my CM4 devices.I use it on the 3V3 supply not 5V (pin 1 on the 40 pin header from the main boards, if fitted).Keeps the CM4 cool without fan making too much noise.

Efficiently managing temperature is essential for maximizing the performance and lifespan of electronics, and the GeeekPi Aluminum Alloy Heatsink with PWM Fan for Raspberry Pi Compute Module 4 has proven to be an outstanding solution. This combination of advanced cooling technologies has brought a new level of efficiency and style to my Raspberry Pi Compute Module 4 projects. Here's why I highly recommend this heatsink and fan combo:Effective Heat Dissipation: The aluminum alloy heatsink is meticulously designed to draw heat away from the Raspberry Pi Compute Module 4. It efficiently dissipates excess heat generated during demanding tasks, ensuring optimal performance and preventing overheating-related issues.Dynamic Cooling: The integrated PWM fan enhances the cooling process further. The fan's adjustable speed control ensures that it operates at the right RPM for the current thermal conditions. This dynamic cooling approach optimizes cooling efficiency without producing unnecessary noise.Sleek Aesthetics: The GeeekPi heatsink and fan assembly not only performs well but also adds a touch of sophistication to my Raspberry Pi setup. Its sleek design and quality construction complement the aesthetics of my projects, making them both functional and visually appealing.Customizable Cooling: The adjustable PWM fan allows me to fine-tune the cooling based on the workload and ambient temperature. Whether I'm running resource-intensive applications or simply idling, I can adjust the fan speed to strike the right balance between performance and noise.Easy Installation: The installation process is straightforward, thanks to the kit's compatibility and included accessories. The heatsink attaches securely to the Compute Module 4, and the fan connects easily to the GPIO pins. This user-friendly design ensures a hassle-free setup.Whisper-Quiet Operation: The fan's quiet operation is a testament to its engineering. Even at higher speeds, the fan produces minimal noise, allowing me to maintain a peaceful work environment without sacrificing cooling performance.Enhanced Lifespan: By actively managing the temperature, this heatsink and fan combination contributes to extending the overall lifespan of the Raspberry Pi Compute Module 4. This reliability and longevity are essential for long-term projects and deployments.High-Quality Craftsmanship: GeeekPi's commitment to quality is evident in the craftsmanship of this heatsink and fan assembly. The durable materials and meticulous construction ensure consistent performance and durability over time.In summary, the GeeekPi Aluminum Alloy Heatsink with PWM Fan for Raspberry Pi Compute Module 4 is an indispensable accessory for anyone seeking efficient cooling and optimal performance. Its ability to dissipate heat effectively, along with its dynamic fan control, brings a new level of reliability to Raspberry Pi projects. Whether you're a hobbyist or a professional, this heatsink and fan combo is a valuable addition that enhances both functionality and aesthetics. Say goodbye to overheating worries and hello to a cooler, more capable Raspberry Pi experience.

Keeps my Pi cool, can't complain.

Raspberry Pi CM4 wird sehr gut gekühlt und ist leise dabei finde es sehr gut.

Ottimo prodotto, utilizzato con un CM4 che lo attiva a 60°C e lo spegne dopo pochissimi secondi quando la temperatura raggiunge i 50°C

Radiateur en aluminium pour Raspberry Pi Compute Module 4 CM4, et qui qui ne convient que pour ce modèle précis Raspberry Pi Compute Module 4.Voilà une bonne surface pour dissipation de la chaleur.Montage des plus simple :- Positionner les coussins thermiques- Positionner le radiateur- Insérer les 4 vis M2,5, par le dessous- Positionner les 4 écrous M2,5, à serrer raisonnablement avec le mini tournevis fourniEt voilà, c’est déjà terminé.