I used them as case fans in front of the case because now in the summer the temperatures of both the graphics card and the processor were very high. It dropped the temperatures by 2-3 degrees and at idle they are quite silent. However, if they run at max rpm at 3000, then they are ready for takeoff. It's hard for them not to make noise at such speeds, but I have to mention it because I expected less intensity; nonetheless, they are 3000rpm, so it’s understandable. Also, I had a really hard time screwing in the screws with a screwdriver because the fans did not have grooves inside the housing, and you practically create them while screwing. If the case also doesn’t give you enough flexibility to screw... good luck and bring out the muscles.

Premium fan, that's why the price is higher... If you don't want lights, go for this one or Noctua. I have them both in my case and in the water cooling of my Phanteks T30 V2... in the Lian Li Lancool 3, and I think I have never seen such airflow. Noise is nonexistent at medium speeds, while at high speeds it's so low that it doesn't bother much. In conclusion, if you care about substance and not the circus with LED lights, then invest without fear.

Very good product. It looks great with a stealthy look without any flashy elements. It's a bit expensive but I believe it will last for many years.

Top of the top. It doesn't have RGB and it's expensive, but it pushes an incredible amount of air at lower noise levels compared to the competition.

Words are unnecessary.... they lowered the temperature in a case with minimal air flow on water cooling. From 60 degrees, it dropped to 49-50 at idle. At full load, I have opened the 3000 RPM mode.... (if someone has an issue with the noise because their PC is on their desk.... it would be better not to put the advanced mode on the fan) because it sounds like an airplane trying to take off. Otherwise, I have nothing negative to say about these in terms of performance. Their price is a bit steep but they are close to Noctua (for those who are looking)