P12 PWM PST CO - PC Fan, 120mm Case Fan, PWM Sharing Technology (PST), Pressure-optimised, Dual Ball Bearing for Continuous Operation, Computer, 200–1800 RPM (0 RPM <5%)

I wrote a more detailed review on the 140mm version, as I ordered 3 of each to fill out my case, but all of mine arrived intact despite Amazon's poor packaging other reviewers have noted, and they seem like good quality and value. It's hard to make a direct comparison as I went from 3 fans to 6, so I would expect lower temps even with everything else being equal, but all 6 of these together are quieter than the 3 fans they replaced (Fractal stock fans that have been running 24/7 for more than a decade) so I'm satisfied.

Not much to say here, this fan works great for a low cost. I realized I didn't like RGB fans, so I went with this one and I've been super happy with it. It was easy to install and runs quiet. It blends in well and creates a deep black that looks like the depths of my soul. This isn't a comparison to my levels of happiness, I just play League of Legends. Overall, highly recommend this fan to anyone looking for an understated style of fan.

Excellent fans, good pressure, silent, good quality, this review is 5 years at least since I installed them!

If you need a fan to push through a radiator, this is it. I bought three of these to replace the stock fans on my 360 deepcool castle 360, and when comparing versus those fans and also some corsair ml120 pro "magnetic levitation" fans, it's not even close how much better these fans are to those. For some reason I would have thought that stock fans on a premium 360 aio would be the best suited, but these arctic fans can run at 100% and are quieter than both the stock aio and corsair fans by a mile. Keep in mind that this particular model is for static pressure so you want it for situations where you are pushing through mesh filters or radiator fins. For fans that are general airflow/case fans, get the ones that start with F, I also bought an 80mm fan for exhaust (F8 pwm pst co) and it runs just as great as this one.

Like most products I buy, I YouTube to the ends of the earth and back to find every applicable review before buying something. I did my homework on 120mm fans before buying the Arctic P12s. They consistently ranked in the upper half of all 120mm fan reviews for both cooling performance and quietness (in dB). We all know that Noctua AF 12x25s reign supreme, but I was looking for a non $32 fan that gave good performance at a much lower price. In my testing this past week I used these fans for exhaust and intake for my AIO radiator. The good: The fans deliver well on cooling. It pulls a lot of air through my AIO radiator and is relatively quiet low to mid-level speeds. The bad: There is a consistent motor whine with these fans. I had heard this in reviews but they always downplayed it as insignificant. Well, it's definitely audible and if you like a very quiet system, these are not the best choice for a similar price range. Overall: Good fan, fairly quiet, and delivers good cooling. However, I ended up buying the Noctua NF-P12 Redux. They are a few dollars more and are quieter fans that deliver equal performance on cooling. I would definitely recommend anyone going that route if you're looking for a really good 120mm fan at a low price.

It is very quite, much quitter than my last one.

Artic Fans are the only fans I will ever use for building or replacing fans. These fans get the job done and are a great value for the money. I've tried other brands which were more expensive and had less airflow. Keeping things cool in your computer is what fans are suppose to do and these do just that. I like how the airflow is more directed rather than spreading out away from the components your trying to cool in the first place. If you want to waste your money go ahead and buy other more expensive fans that do less of a cooling job, it's your computer not mine. I'll stick with these. Save money and keep my computer cooler, it's a no brainer... Check the warranty on these compared to other fans and you'll see it's a win win.

At a PWM similar to the non-CO variant (roughly 1000 RPM), the movement of the blades is audible. It's clearly bearing noise. However, the non-CO variant makes NO bearing noise *except* at 1200 RPM, where it makes an annoying noise that goes away at any other RPM. In fact, excepting this defect, the non-CO variant is about as silent as noctua fans. It is disappointing that the CO variant is noisier (or more irritating) than the non-CO variant, because, remember, the non-CO variant uses a sleeve bearing, and can NOT be used in an anything but a vertical orientation! If you want a noctua-performing fan and need fans in a vertical orientation, I heartily recommend the non-CO variant of this fan. The CO variant I wouldn't use again. I simply got it to use as an auxiliary fan to keep my computer cool while it is charging (to extend the life of the li-ion cells).