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  6. Item#: 1YF-001D-000R8

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Pure Wings 3 | 140mm PWM High Speed Case Fan | High Performance Cooling Fan | Compatible with Desktop | Low minimum rpm | Low Noise | Black | BL109

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  • 120 mm PWM
  • 120mm PWM high-speed
  • 140mm high-speed
  • 140mm PWM
  • German Engineering I German Design I German Quality I German Performance
  • OPTIMIZED FRAME | The fan frame outlet designed for peak performance on radiators
  • AIRFLOW | 7 airflow-optimized fan blades not only reduce noise, but ensure performance under demanding configurations
  • QUIET PERFORMANCE | Pure Wings 3 can be operated with very low minimum rpm for very quiet operation
  • LONG BEARING LIFE | Long life rifle bearing gives an operating lifetime of 80,000 hours
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Overview
Specs
Reviews (44)
Performant, Progressive, Quiet

With low minimum rpm and high top-end speed, Pure Wings 3 140mm PWM high-speed are the perfect addition to PCs for any application.

PURE WINGS 3 | 140mm High-Speed
Optimized Fans
Optimized Fans

The fan frame outlet is designed to minimize air leaks. This benefits especially the radiator performance of Pure Wings 3 120mm. To reach even higher performance, the fan blades are optimized as well: Their angle is adjusted to achieve even more air pressure, adding up to the extraordinary performance of Pure Wings 3 120mm. 

Fan blades for high airflow
Fan blades for high airflow

With optimization for maximum airflow, Pure Wings 3 120mm is the right choice for any case configuration that demands high cooling performance. Its 7 airflow-optimized fan blades not only reduce noise-generating turbulences but also ensure Pure Wings 3 120mm provides the performance that is needed, even in demanding configurations. 

Iconic Design
Iconic Design

Pure Wings 3 140mm PWM trims all the fat. Every part and single detail contribute to the functionality and uncompromising performance. This has also been considered in the design of the fan. All outlines and angles serve a purpose, making Pure Wings 3 140mm PWM a timeless classic and elegant addition to every gaming PC.

For Radiators and Heatsinks
For Radiators and Heatsinks

With a remarkably high air pressure of up to 2.44mm/H2O, Pure Wings 3 140mm PWM high-speed is the best choice for water-cooled and air-cooled systems alike. The 9 airflow-optimized fan blades provide enough air pressure to make this fan work great even in demanding configurations.

Rifle Bearing Technology
Rifle Bearing Technology

Pure Wings 3 140mm PWM high-speed is built to last. With the proven rifle bearing technology, on average, this fan offers a lifespan of 80,000 hours.

Progressive Quiet Performance.
With low minimum rpm and high top-end speed, Pure Wings 3 140mm PWM High Speed are the perfect addition to PCs for any application.
The fan offers outstanding reliability and makes for a long-lasting, companion for your gaming system.
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 High Speed 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

Warranty & Returns

Warranty, Returns, And Additional Information

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  • *Subject to applicable law

  • Warranty Notice:

    This product does not include manufacturer warranty when purchased or used outside of its designated sales region. By purchasing internationally, you acknowledge that warranty support from the manufacturer will not be available.

Manufacturer Contact Info

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The be quiet! Pure Wings 3 BL109 is a 140mm PWM case fan for desktop builders seeking strong airflow for demanding cooling setups, including radiator use. It reaches 1,800 RPM, moves 70–75 CFM, and has a stated maximum noise level of 30.5 dBA.

Recommended For

  • Builders adding a 140 mm fan to a radiator or heatsink who want PWM speed control and a high-speed model designed to maintain its target RPM against airflow resistance.
  • Desktop builders improving airflow through a 140 mm case mount, especially where a dust filter or grille adds resistance; the high-speed version is positioned for higher air pressure than the standard Pure Wings 3.
  • Noise-conscious PC builders who will use a PWM curve to run the fan below maximum speed during everyday work, then raise speed when gaming or rendering increases cooling demand.
  • Builders who want a plain black, non-illuminated 140 mm fan for a functional airflow setup rather than a visible RGB-focused build.

Real-World Use Scenarios

  • When adding or replacing a 140 mm case intake fan, users can direct fresh air into a compatible PC case; the PWM control allows fan speed to be adjusted to balance airflow and fan noise.
  • For a compatible 140 mm radiator or air-cooler position, the fan can move air through the cooling surface; in Gamezoom’s test, it delivered effective cooling on both a CPU cooler and a 280 mm AIO radiator.
  • In a PC that is quiet during light use but needs more cooling under load, users can set a motherboard PWM curve to run the fan slowly at idle and ramp it up as temperatures rise; low-speed operation is supported, while higher speeds are more audible.
  • When a fan is mounted behind a radiator or grille, its closed-loop motor is designed to maintain the selected speed despite added airflow resistance; this can help keep fan behavior more consistent as the cooling setup restricts airflow.

Spec Summary

AttributeValue
Best ForDesktop case cooling with a 140 mm PWM high-speed fan
Fan Design And Control140 mm case fan with 4-pin PWM control
Cooling PerformanceUp to 1800 RPM, with 70–75 CFM airflow and 30.5 dBA noise at maximum speed
Power12 V, 6 W
AppearanceBlack, without LED lighting
Included ComponentsFan and mounting screws
Model Identifiersbe quiet! BL109