Special design for your Raspberry Pi CM4 is made of aluminum, it can avoid the overheat of your the wholes Raspberry Pi CM4 mainboard, not just for the main-control chip. And the results of our experiment, the temperature of the CM4 mianboard heatsink can be about 10 degrees lower than that of the conventional CPU heatsink.
Feature:
With WiFi holes, convenient to connect the WiFi Antenna