What is the expected operating lifetime of the be quiet! Pure Wings 3 140mm fan?

The fan has a long life rifle bearing, giving it an operating lifetime of 80,000 hours.

What features contribute to the quiet operation of the be quiet! Pure Wings 3 140mm fan?

The fan can be operated with a very low minimum rpm, which allows for quiet operation, and it has newly designed fan blades with a re-arranged angle for extraordinary air pressure.

Questions & Answers: be quiet! Pure Wings 3 140mm Quiet PWM High-Speed Case Fan | Speed-regulating Closed Loop Motor| Extraordinary Air Pressure

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be quiet! Pure Wings 3 140mm Quiet PWM High-Speed Case Fan | Speed-regulating Closed Loop Motor| Extraordinary Air Pressure | BL139

Optimized fan frame for outstanding performance on radiators
Newly designed fan blades and re-arranged angle for extraordinary air pressure
Pure Wings 3 140mm PWM can be operated with very low minimum rpm for very quiet operation
Long life rifle bearing gives an operating lifetime of 80,000 hours
Product conception, design and quality control in Germany

$34^.90 –