Review on case fan be quiet! Pure Wings 2 140mm PWM, black by Stanislaw Szudek ᠌

If the performance / noise ratio is in the first place, then this is the best case fan for the money. Got pros: One of the quietest and most productive low-speed fans in its price segment Got cons: The bearings are not perfectly quiet. The kit comes with silver metal screws, although the coolers are black. There are no anti-vibration pads to mount to the case.