4pcs 3007 Fan Black for Raspberry Pi 4 Fan 30x30x7mm Pi Brushless Cooling Fan Brushless 3.3V 5V DC Quiet Fan for Raspberry Pi 4, Pi 3 B+, Pi 3 B, Pi 2, Pi B+, Pi Zero/Zero W,Robot Project

I had a RPI4 kit from “LABISTS” and the fan that came with that was horrible. Very loud.Got this one, it’s much quieter and does a fairly good job cooling. In another RPI4 I am seeing about 50 degrees celsius; with this fan in the other RPI4 I see about 55 degrees celsius. It doesn’t cool as much but it is quieter, so I think that is fine for this unit.I think the secret is that this fan is about 1/2 as deep/tall as usual RPI fans I have owned. It fits in the same space but since there isn’t as much surface area, the fan doesn’t cool as much (and the fan doesn’t make as much noise). If you have a big need for the most cooling, this isn’t the best option. But if you prioritize quiet as your #1 criterion then this is a great pick. I am very happy with it. Only had it 1 day but so far it’s been great.

Used this to replace the fans on two cases (one was failing, both the same age). Perfect replacement, nice and quiet, easy fix. Very happy.

The fan in my Argon One V2 Pi 4 case started screaming like a banshee so I sought a replacement fan. (It was really impressive how loud the fan became). Anyway, I picked these fans up because they were the right size, voltage, and were cheap enough. I don't think the fan moves as much air as the original fan but I don't really care since it is whisper quiet.If you are looking at this fan as a replacement to the Argon One V2 case fan, know that some modification is required to make it work. I cut the original fan plug off and soldered it onto the replacement fan power cable in order for the replacement fan to plug up as the original fan did. I also had to cut some length off the bolts the replacement fans came with in order to be able to snug the fan to the case as the Dorhea fan is thinner than the original fan and the bolts are inset in the case body. I've tried to describe this with the attached pictures so save somebody else some time.No more screaming banshee fan... for now.

It works well and does blow air. It doesn't blow a lot of CRM but this is a 30mm fan running at 5v. It brought my Raspberry Pi 3B+ down from 49*C to 33*C while using a heatsink with this fan. It's not whisper quiet but next to my Ender 3 V2 running Klipper and 200m/s, you can't hear it over the machine. You can't ask much more for a 30x30mm 5v fan.

Purchased these to replace a fan in a RPI case that is making noise. they fit well and are very low to no noise.

This fan came in a pack of 4 well packaged and worked very well for my applicaiton. Very quiet and worked immediately to cool off my warm PI.

After 6 days in the Raspberry Pi, the fan was making failed bearing noises and running poorly. I swapped it for another, but I don't have much confidence. We'll see...Update: After 3 weeks, the 2nd fan is making noise. It seems the quality of these fans is poor, I would recommend trying something else.

I glued one of these low profile fans on the inside of the perforated cover for my Raspberry Pi 4B. Without the fan the device nearly overheated but with the fan the temperature averages around 42.8 C. You have to look online at the pinout for your device to make sure you install it across the correct voltage pins but that was easy and the fan wires have built in connectors that slip over the pins on your device. Once I knew which pins to use it took me less than a minute to install. Make sure you use heat sinks on your CPU and chips as recommended by the manufacturer, in addition to the fan.