be quiet! Silent Wings Pro 4 140mm PWM fan, optimized fan blades, extraordinary high performance, Speed Switch for changing maximum PWM speed, 6-pole fan motor, fluid-dynamic bearing

I recently upgraded my cooler to the Dark Rock Pro 5 and that works very well but I wanted to also change the exhaust fan as my old, dirty one was getting a bit noisy. This fan is excellent, very, very quiet unless at 100% which is rare. Its certainly helping move air through my Lian Li Lancool case effectively and helps my GPU stay cool too. So good I may buy another.

I’m running five Silent Wings 4 fans in my system, three 140mm front intakes, two 140mm top intakes, and a 120mm rear exhaust. Airflow is excellent and thermals remain consistently strong even under sustained load. The fans maintain good static pressure and stay impressively quiet at higher RPMs. Build quality is solid, and PWM control works smoothly. Highly recommended for anyone aiming for strong airflow without excessive noise. Highly recommend!

Excellent replacement for my PC case, 4 pin connection so its speed is regulated by the motherboard , and its very quiet Good investment.

Below about 25% it is essentially silent, and still moves quite a lot of air. Even at 50% its still quiet. Yes, its noisy at 100%.... but all fans are, this one is not as noisy as any other fan I've ever used at any speed.

Amazingly quiet fans, I have these setup as front intake on a NZXT H5 Flow, set at a minimum 1.1k rpm you cannot hear them at all, they are quite pricey but imo its worth it for the performance, I have them working in cooperation with 2x 120mm of the same series on my cpu heatsink, on a 9800x3d i am getting 36-38 degree idle temps and never above 50 in gaming, so the airflow performance is also really good. I have tried corsair 140mm, thermalright 140mm and NZXT basic 140mm, none are close to the bequiet for combination of temps and noise levels.

I recently bought the Corsair RS120 (set of three), and they did not meet expectation (I could hear them over my noise cancelling headphones), I could tune with the fan curve, but even then they still fell below expectation. They're now boxed up in the cupboard as a backup. I already had a beQuiet CPU sink/fan and it's basically silent (actually silent, not just a marketing gimmick) so I thought I'd try the beQuiet Silent Wings 4 for my front fans. Needless to say they're pricey, but.... very very quiet - so I'm very happy. At highest RPM's you can hear them whirring, but for standard PC use and even gaming, they're silent or near silent. Even when you can hear it, the sounds is restrained, no hair-dryer here... If you value peace and quiet, these are the ones to go for.

Have loads of these, whilst the fans are themselves quiet the air they push around a case is not.

Great fans at a great price.

Silenziosissime e molto performanti

The instructions manual is hidden under the fan package , come with 2 sizes of the mounting and the screws in the accessories box. Depend on which mounting you prefer , installation was very easy and quiet

Silencioso, bien acabado y elegante para ser el tipo de producto que es. La calidad se paga. Recomendado!

Installation simple et rapide. Malgré qu'il soit high speed, le silence est au rendez-vous en idle, commence à se faire légèrement entendre lorsque le CPU monte à 50°.

Exchanged my stock EK Nucleus AIO fans. Didn't do much for the temps or noise in my original push config in a Meshlicious case. Switched to a pull config (fans outside the case, and the temps and noise is amazing now! Next time I will test Noctua instead tho.