ARCTIC P12 PWM PST - 120 mm Case Fan with PWM Sharing Technology (PST), Pressure-optimised, quiet motor, Computer, Fan Speed: 200-1800 rpm (0 rpm <5%) - White, Transparent

Very quiet, very efficient. Look great. Also these are proper white, not off white. Can be daisy chained.

These P12 PWM fans are an absolute steal for <£7. The 5-blade design works really well in free-flow (case exhaust) and restricted-flow (filtered intake, radiators) environments. It would appear that static pressure and airflow are both impressive with this fan, whilst maintaining a very low sound level. Also, once the fan speed is turned up to max, though it is audible, the sound pitch is much less irritating than many other fans I have tested, including the Noctua NF-P14!Arctic genuinely appears to be a company with lots of experience with PC cooling solutions that has put plenty of R&D into making these P-series fans ideal for what savvy, budget-conscious, PC builders would use.I have only used 2 of these fans for a couple of weeks now so cannot comment on longevity but they come with a 10 year warranty!I was selfishly tempted not to write such a positive review because I don't want the price of these fans to increase with their popularity! But Arctic definitely deserve your attention with these fans. I'm a fan!

At a certain RPM, they begin to hum - this isn't bad for one or two fans, but three or more and they get quite frustrating, but not too loud. Airflow-wise, they run perfectly and keep my system cool. Would recommend simply for the value for money, as you get a (reasonably) quiet fan with good performance.

I bought 2 of these to put under the GPU, and i'm running them at 45% speed. Literally can't hear them. Very quiet efficient fans. Eventually when i upgrade to a better CPU, i'll buy one to stick on the cooler you see above. Also, the cables have a daisy chain socket so you can stick them both together on one header. Nice touch.

Done a lot of research to find decent quality chassis fans with speed control and settled on these. They're great and surprisingly quiet. At normal system operation I can hardly hear them. Great.

Don't expect either total silence but they are quiet enough and do the job I ask them to do. So all in all good value for money and decent product.

For all the positive reviews on Youtube and tech reviewers, this fan really didn't perform to expectation. The cheap packaging was the first red flag. The thin made-in-China cabling was the second. The frame of the fans are lightweight and flimsy, very easy to distort and bend. Finally the airflow did not come anywhere close to what the reviewers were able to achieve even at 100% max fan speed.By simply swapping these fans out to Thermaltake Riing fans one for one, I immediately saw higher airflow and 10C lower temperatures in all parts of my PC. I really wanted to like these fans, but the only thing good about it was that I wasted only a small amount of money and time. It could've been much worse.

I bought these for a budget gaming build and they seem to work very well. The noise level is pretty low and the fact the you can connect many of they at the same socket(PST version) is very nice.