Review on 🌀 ARCTIC P12 PWM PST 120mm Case Fan: Pressure-Optimised, Quiet Motor, PWM Sharing Technology - Buy Now! by Minoru Izaki ᠌

very quiet, even at maximum power you can hardly hear them in a closed case. I installed all 5 as hull twists, the hull airflow became fantastic. in a long stress test with a gtx 1080 + 8700k overclocked (with a consumption of about 150 watts), the air inside the case remained cool, the blown air flow was also not very hot. but most of all, perhaps, I was pleased with the noise level - they are really almost inaudible even at maximum speed of 1900 rpm