Raspberry Pi 4 Fan, iUniker Raspberry Pi Fan 30x30x7mm Brushless CPU Cooling Fan with Raspberry Pi Heatsink Sets for Raspberry Pi 4 Model B, 3 B+, Pi 3B, Pi 2 (4-Pack with Heatsinks)

I chose this product specifically for the added heatsinks. And I was not disappointed.I collected a few basic datapoints.With fan on 3.3V and no heatsink, I saw a 5C reduction in CPU temperature.With fan on 5V and no heatsink, I saw a 10C reduction in CPU temperature.With fan on 3.3V and heatsink installed, I saw a 10C reduction in CPU temperature.I chose the 3.3V with heatsinks for good cooling but lower noise, lower power consumption and hopefully extended lifetime for the fan motor.This was tested on RPi 1B and RPi 3B, both in passively ventilated plastic enclosures.I was initially apprehensive about the heatsinks since they did not come with thermal paste but only a sticky pad. But I was pleasantly surprised at the positive thermal transfer properties of the glue.The fans have been running a month and so far no failures or increased noise levels.I will update review when this changes.

I needed a simple fan kit for two of my raspberry pi's and this delivered. Plus I have two spares!

That's really my only complaint. These are quiet, small, and easy to install.

Ordered these just over 2 months ago. Fan #1 of 4 just kicked the bucket. Not a great run. Let's see how the other ones fare. Will update my rating and review accordingly.

At first these fans are absolutely quiet. But I have a RPi running OctoPrint that runs 24x7 and after a few days, the first fan began to moan. I replaced it with another ... same thing after ~ 1 week. So I bought a fan with a hydraulic bearing and it's been running for months no problem.

After seeing my second YouTuber rave about the 52Pi tower design I decided to get one. And the enthusiasm is justified: this design will keep your SoC remarkably cool. How cool? How about in the low 40s with sysbench maxing out all 4 processor cores? I debated knocking a star off for the cost but let's face it this is luxury item and you're getting what you pay for. It's true you can keep a Raspberry Pi 4 acceptably cool in normal use with just a normal 20mm heat sink and a baby fan dispersing the heat. But if you're overclocking or otherwise stressing your Pi, the tower will bring you peace of mind. Plus it looks nifty.One caveat: like most beefy cooling designs, once installed this device will block your access to the J2 pinout. What's that, you ask? J2 is your access to the reset line (pin 1, GLOBAL_EN) and the system halt (pin 3, RUN). Pin 2 is ground and you activate reset or halt by connecting pin 1 or pin 3 to ground. If you're debugging a tricky project or finding your Pi 4 occasionally locks up on you, hitting reset is going to happen more often than you'd like. And there just isn't the clearance for installing J2 access pins, as you'll find out when comparing the tower's mounting with the GPIO pin height. So if you want/need a reset button, solder some wires to the board's J2 holes ahead of time.

I'm really happy with this cooler. Does keep the RP4 at insanely low temperatures. I modded it with a Noctua Fan (NF-A4x10 5V, Amazon) and added some Arctic Silver 5 thermal paste (Amazon), but I ran tests before that, and it was already at impressively low temperatures. Keep in mind, if you decide to get a Noctua Fan, you'll need to swing by the local hardware shop (Smaller HDW Shop with metric screws) and pick up 4 of the "next length up" screws. You'll also need some GPIO jumper cables (Amazon) if you don't want to solder. I zip tied my wiring after because I zip tie everything in life.There is a newer, low profile model out, but the one I have is obnoxious.... and I love that about it. I really do miss the smooth changing LED stock fan I replaced. There was nothing wrong with it. I bought the RP4 to play around with, so that, and a couple degrees cooler temps, are the only reasons why I decided to switch out the fan. The product works perfectly awesome without any modifications.The reason I chose this supplier instead of the others was because of the stand that is included.Hope this was helpful.

This fits, and is the same size as the original. The fan is quieter than the original that came with the computer. It is good that it has 4 individual units plus the heat sinks if you need those.