Review on 📦 iUniker Raspberry Pi Cluster Case with Cooling Fan, Heatsink for Raspberry Pi 3 Model B+, Pi 3 B, Pi 2 B, Pi B+ (4-Layers, Brown) by Tim Thomason

I have a LOUD fan out of 4 so there is a 25% chance of failure (well it worked). I had to turn off all PIs to remove the bad one and replace it with a 4th that I wasn't using (only 3 PIs at the beginning) so if I was using 4 PIs one would not be cooled. They keep the CPU at around 85F according to the pihole monitor and the built in Raspian command "vcgencmd Measure_temp" or "/opt/vc/bin/vcgencmd Measure_temp". I ended up buying this one so I can pull them one by one: https://www.amazon.com/gp/product/B07D5MJ7P/ref=oh_aui_search_asin_title?ie=UTF8&psc=1 I'll be writing a detailed review about that soon as well has a LOUD fan that is unusable by 4. Since I have spare parts and will use them later for one or two devices, I saved these.