“I was running my Raspberry Pi 4 (4GB) as a Home Assistant server and noticed that the device was sitting at about 57 degrees (Celsius) while idle (less than 5% CPU usage). I added this case and the idle temperature dropped by 10 degrees from the start. It is worth noting that the device on just on a desk with no airflow.
For the average user of the Pi 4, I would suggest that this is enough. However, be aware that as this is a passive heatsink case, the entire device and case will be warm to the touch and during periods of heavy activity, can still get hot.
If you are an active user or are pushing the device to work harder, I would suggest the "Dual Fan Heatsink Case for Raspberry Pi 4 (SKU: TPH-003)" as adding a small amount of airflow over the product for which this review is for, reducing the temperature by a further 15 degrees minimum.
I can't knock the build quality of the product, it is very robust and the CNC work is brilliant.”
