A heat sink is a component that increases the heat flow away from a hot device. It accomplishes this task by increasing the device’s working surface area and the amount of low-temperature fluid that moves across its enlarged surface area.
This is a dedicated aluminum heatsink designed specifically for the Raspberry Pi Compute Module 4 (CM4).
In testing, Waveshare found that the heatsink reduced temperatures by ~11°C vs the bare CM4 board (your mileage may vary depending on usage and local conditions).
Package Includes:
1 x CM4-HEATSINK Special for Raspberry Pi CM4
Official Raspberry Pi 16mm Telephoto Lens for Pi High Quality Camera
Waveshare Adapter Board for Arduino and Raspberry Pi
X2 ELF 88MM Micro brushless racing kit
Fatshark ImmersionRC SpiroNet 5.8GHz SMA Antenna
QX 95 Quad-Copter Combo kit with Radiolink flight controller
T-motor CubeMars AK10-9 V2.0 100KV Brushless DC Actuator Robot Joint Motor
Raspberry Pi 4 Model-B with 4 GB RAM
Raspberry Pi Official Mini HDMI C/M to Standard HDMI A/F Cable 10CM White
Mark4 5 inch 225mm carbon fiber frame kit
Espressif ESP32-S3-DevKitC-1-N8 Developmnt board
Official Raspberry Pi 5 Active Cooler
TBS Triumph Antenna FPV With SMA Male Connector-(Copy)
5.8G 3dBi 4 Leaf Clover RHCP RP-SMA Antenna with Cover for FPV Multicopter
Official Raspberry Pi Camera NOIR V2 



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