The Best 120mm Case Fan Shootout: Arctic vs. be quiet!, BlackNoise, Noctua, Scythe & SilverStone - YouTube
Noctua NF-A4x10 PWM 40mm x 10mm Ultra Quiet Silent Fan 3-Pin Premium Cooling Fan for CR-10 S4/CR-10 S/CR-10/CR-10 S5/CR-10 mini 3D Printer - Walmart.com
NH-U12A Premium 120mm CPU Cooler with two Quiet NF-A12x25 PWM Fans
I went all noctua, installed all fans with anti vibtation pads and mounts. Still not as silent as I expected, any advices? Further description in comments : r/Noctua
Noctua NF-A6x25 5V Quiet Computer Cooling Fan 60mm