Germany's own be quiet has now let loose a new trio of SilentWings case fans, this time, with a built-in PWM function, enabling users to choose the speed they will operate at. The 80, 92 and 120mm fans have a screwless mounting system for easy installation, a Copper-Core FDB (Fluid Dynamic Bearing) for a long life of up to 300,000 hours, and a PWM controller.

As for the specs:

- 80mm | 500 - 2000 RPM (speed) | 16.5 dBA (sound output) | 44.2 m3/h (airflow)
- 92mm | 470 - 1800 RPM | 17.5 dBA | 55.4 m3/h
- 120mm | 500 - 1500 RPM | 18.5 dBA | 85.5 m3/h

The 80, 92 and 120mm SilentWings PWM fans are now listed in Europe at prices going from 11 to 14 Euro.