Review on High-Performance Raspberry Pi 4 Fan - Quiet DC Brushless CPU Cooling Fan with LED - Ideal for Raspberry Pi 4 Model B and 3B+ 3B 2B+ by Carl Givens

I bought 4 sets of fans and they are perfect! I have 2 4GB and 2GB Raspberry PI models that need some cooling. Luckily I have a 3D printer so I was able to print a case that would fit these fans but I'm sure you can find them online for a low price. This fan is exactly what I need for my build. I wanted a silent fan to keep my Pi cool and it does the job perfectly. I would highly recommend this to anyone who wants to actively cool their Pi on the cheap. Pros: - Cheap: - I bought them for less than $10 so that's $2.50 for a fan which is great value. - The material used does not look cheap and the supplied screw and nut are fine - Quiet sound: - I recorded the fan noise at a distance of 10 cm and found no significant difference in the noise change (<1 delta dB) - the noise level is not audible , you can't even tell if the fan is running without looking at it - Excellent cooling: - The temp for my pichol with another running background process was around 63°C before installing the fan and now 46°C after installing the fan. Cons: - Not yet, I'll be back in a month.