I don't know if I can add much more to what others have commented about this fan, but I have to say that at this size and at this price, there is no other fan that delivers 80+ cfm airflow. Yes, when it receives a command to increase the airflow (4-pin connection) and ramps up the speed, it will be louder than someone would like. But we can't have it all. The important thing is that in normal operation it is essentially silent. Based on its price, I consider it the best choice for a 120mm fan. The only reservation is how long it will last over time. But even that is quite covered by the six-year warranty from the company. So from me, 5/5 stars and I recommend it without reservation!

A fan that I was late to learn about, I highly recommend it for high-end setups as its airflow is amazing... obviously due to the rpm (max 3300) there is corresponding noise... it doesn't bother me, but I mention it because it may bother some people.

A comparison measure for its sound: it is much less than a GPU blower

I bought a dozen literally, but I can't use them because after 30%, in my opinion, the headphones are unbearable.
Very, very important note to clarify that I have hypersensitive hearing and generally have a low tolerance for noise, so here is an important factor that I think the average person should take into account.
As for performance, what can one say, I have long hair and at 30 centimeters it blows it back for fun when you put it at 100%, it is a very powerful fan both in terms of pressure and the amount of air it can move, so a little more independent of my "sound" opinion, anyone who is not so interested in this factor, especially at this price, will find it very difficult to find something better.

It is for office use, so the noise is tolerable and occurs above 75% of the rpm. Considering the cfm it produces and at this price .....