P12 Slim PWM PST - PC Fan, 120mm Case Fan with PWM Sharing Technology (PST), Pressure-optimised, Quiet Motor, Computer, Extra Slim, 300–2100 RPM - Black

From a sheer performance perspective, and I'm talking pushing the most air through your case or into a heatsink, and doing so quietly, these fans are tough to beat. Considering they're only 15mm thick, I put them into my own best-of-class category. But while they do work great, they are on the flimsy side. I'll give you an example. After looking up the stats and reading some reviews, I decided to replace a competitor fan (name begins with 'Noc') with the P12 Slim in a sub-5 liter mini-itx case. I found the P12 to have slightly better performance by 2-3 degrees C in my case overall, with the noise the same as the Noc, at less than half the price. Only, when I first closed the case, the P12 wobbled at slow speeds, making an obvious noise along with it at startup and shutdown. This lasted for about 3 startups/shutdowns and just went away. I checked cables and all were clear, so it had to be coming from the fan. Considering its the same size as the other fan, which had no weird noise issues, I just felt the word flimsy came to mind. Maybe it twisted slightly to fit or something? I couldn't tell by looking. I'm not going to take a star off for this, but just be aware. I would have returned it if things didn't settle down. But it did, and it's been great, and mostly quiet, as the primary cooling fan for a Ryzen 9 7945HS. I'm not undervolting, and yet my temps are stable and well under 80C in normal use with temporary spikes up to 88C max. For the performance and value for the money, this is one of the best fans on the market at the 15mm height size.

Everything was in perfect condition on arrival and works like a charm! Easy to install, has great force for rapid cooling and is extremely quiet.

Great drop in replacement fans for a front radiator. Quiet and efficient.

Needed these to use in a system build for the exhaust fans on the top of the case. The original fans acquired were regular Arctic P12 PWM PST fans (25mm) and the Antec N200M MATX case was just too tight a fit with the radiator in the front, exhaust in the back and the motherboard cables coming over the edge. The 10mm gain relieves tension on the cables and provides better clearance for the liquid cooler cables. No problems with installation or mounting. Excellent fans and worked like a charm.

Great quality, quiet, and easy to install.

Compared to other Arctic fan products, these produce no bearing/motor sound. No buzzing whatsoever. Good airflow regardless of being 10mm thinner. These help me as intake fans for a full size ATX case. My GPU was too long to fit a full 25mm case fan between it. Bought these, now I don't have case fans touching my GPU, and there is a nice gap for air flow going straight into the GPU.

Great value and performance slim fan that comes with the needed screws in the box unlike some other fans. 10/10 would recommend

These fans are good if you need some air flow, but are limited by space. If you can fit 20 or 30mm fans, use those instead for much better airflow. That being said, if you need some fans and are limited by space these are a good option. They aren't the best for moving large amounts of air but they will create airflow. I'm using them in a SFF build to move a little bit of air over a thin radiator that compliments a regular 25mm radiator. So far they have helped bring my temps down by about 10C. Which is all that I was looking for. With just the one 240 radiator I was seeing temps get up to the high 70s and I wanted to bring them down. After some research I found that I could squeeze a thin 240 radiator and a set of these fans between the gpu and the side of the case. It's not optimal, and the fans are about 1mm from the gpu waterblock, but it's just enough to allow a little bit of airflow.