Review on 2020 Latest MazerPi 3.5 inch HD Raspberry Pi Touchscreen with Cooling Fan and ✨ Case for Raspberry Pi 4 Model B/Pi 4b - 480x320 Resolution, 60+fps (Screen with Case) by Bam Reeder

TLDR: Great case, works great. I bought a fan only case, I have a PC with very quiet fans (Noctua Low Noise Fan Adapters) and in this case I can't hear the fan on my computer at all. I had to hold it to my ear to make sure it was on. It's a simple matter, there's a bottom shelf that the Pi actually screws to the stands. I found this to be an added benefit as it feels really secure. (They even include a small screwdriver). Then the center section snaps into place and finally the top panel for the fan, it all just snaps together but I would connect the fan first and feed it through the center section to make it easier. I was a little apprehensive about taking it apart because it's just plastic clips, but it was fine. The fact that they not only provide everything you need, but that everything just works made it fantastic. To be honest I'm probably 7 more for the cluster I'm working on. Average room temperature without case 21s (70f): 41s (107f) Average idle room temperature with case 21s (70f): 37c (98f) with heatsinks: 75°C (167f) 20 minutes stable at standard clock, I tested the fan 20 minutes long, then I turned the fan off, let it run for 20 minutes, after it reached 75C for 20 minutes, I turned the fan back on and it dropped back to an average of 60C. .Cpuburn-a53 has been tested with CPUBURN-a53 and is the most CPU intensive stress test you can run and does not represent a realistic real life scenario.