It is hardware compatible with the Pi CM4, and should be usable with carrier boards made for that module. We’ve looked at the CM4 as the exciting face of the Raspberry Pi because the traditional ...

The upgrade allows CM4 to handle colder situations ... After all, running any computer hardware near its temperature limits ...

It appears that the carriers he used were proprietary, but [Avian] provides sketches of how the CM4 is positioned on these. There’s two recommendations for making WiFi work well on the CM4 ...