Very nice fans and good quality.. the only two negatives are that I would like a slightly stronger LED and secondly, the screws require a lot of difficulty to screw in

A simple but well-made fan that has almost dim LED but does its job correctly. It could be cheaper by 3-4 €. I prefer it over another no name brand even if it does the same job.

The friend who commented that the fans sound like kayaks probably didn't bother to check why they were making so much noise. When you install them directly on the motherboard, there is a high chance that if everything is set to default, the fans will run at 100% of their capabilities! A little digging into your motherboard settings would reveal unique possibilities! The fans (to get to the point), are excellent, almost silent up to 60% of their speed! Above that, you can hear the airflow, not the fan blades! Good build quality and effective cooling (I have 4 (3 intake, one exhaust) and they do a great job. Recommended!

I have bought 3 of these and all 3 sound like a machine even at 600 rpm. I have my PC 30 centimeters away from my ear and because I couldn't stand the noise, I threw them in the trash. I didn't even bother to put them on the shelf.

If you have a PC on the floor 1 meter away from your ear, get them, if you are a perfectionist and want your case next to the monitor and you like to see the LEDs, your GPU and fans spinning, do NOT get them.

Good fan and quiet. I recommend it without reservation. Good airflow resulting in maintaining satisfactory temperature in the case. Corsair warranty.

The fan is perfect, I didn't expect it to be so soft but at the same time intense inside the case. Nice color.

In terms of cooling, I didn't expect 66cfm to do such a good job, it has very good performance while at the same time not sounding loud even at 100%.

I put them both for intake and exhaust and they do a very good job. I didn't expect anything different from Corsair

I put 2 in the front panel (Corsair Spec-01), they are barely audible to not at all in standard mode, the only negative thing about it is that its screws do not fit even in the cooler itself.