Review on 🔥 Optimized Raspberry Pi 4 Case with Cooling Fan and Heatsink - MazerPi Raspberry Pi 4 Model B, 4B, Pi 4 by Mike Flyers

The case is very effective and austerely pleasant. This is a simple installation procedure shown directly on the Amazon page (no instructions). The fan itself is not very loud, but it is not quiet either. At a distance of 6 inches, it works about 32 dB, and indoors - 28 dB. If you put the microphone next to a fan, it was about 50 dB. However, it is terribly effective. In a simple stress test, the CPU temperature rises to 59 °C after two minutes with the fan running. Without fan, the CPU temperature reaches 72°C, the difference is 13°C! I honestly didn't expect it to make such a big difference. I still don't think I'll keep it running most of the time, but if I ever stress the Pi I'll be sure to plug it in. Apart from the large slot for accessing the contacts, the case looks very professional. I wish there was a lid that you could snap open to protect them when not in use. But for the price I would say this item can't be beat!