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be quiet! PURE WINGS 3 140mm PWM High-speed, 3-Pack, Speed-regulating Closed Loop Motor, high top-end Speed, Low Minimum RPM, Optimized Fan Frame, Newly Designed Fan Blades
- 3 fans included
- Pure Wings 3 140mm PWM high-speed features a closed loop motor. This technology is comparable with the cruise control in cars. When working against resistance, for example a fan grill or radiator, fans spin slower as a result. The closed loop motor technology constantly monitors the current fan speed and increases it to the target rpm, if necessary. As a result, Pure Wings 3 140mm PWM high-speed always operates at the desired speed, no matter the resistance.
- The fan frame outlet is newly designed to minimize air leaks. This benefits especially the radiator performance of Pure Wings 3 140mm PWM high-speed. 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 140mm PWM high-speed.
- 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.
- Pure Wings 3 140mm PWM high-speed 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 high-speed a timeless classic and elegant addition to every gaming PC.
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Learn more about the Detailed Specifications
| Best Seller Ranking | #68 in Case Fans |
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| Brand | be quiet! |
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| Fan Size | 140mm |
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| Type | Case Fan |
| Bearing Type | Rifle |
| Power Connector | 4-pin PWM |
| Fan Counts | 3 Fans |
| First Listed on Newegg | March 19, 2026 |
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Warranty & Returns
Warranty, Returns, And Additional Information
Warranty
- Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.
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Return Policies
- Return for refund within: 30 days
- Return for replacement within: 90 days
- This item is covered by be quiet! Return Policy
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The be quiet! PURE WINGS 3 140mm PWM High-speed 3-pack is a set of three 4-pin PWM case fans for PC builders who need strong airflow through radiators or other restrictive setups, with closed-loop speed control that helps maintain the target RPM under resistance.
Recommended For
- Builders cooling a 140 mm radiator or CPU heatsink who want PWM speed control and fan speed maintained as airflow resistance changes.
- PC builders adding three 140 mm case fans who need airflow through restrictive grills or filters and can set fan speeds through PWM.
- Builders seeking a plain black, non-RGB fan set for a performance-focused PC rather than a lighting-focused build.
- Users who want a wide speed range for everyday case airflow, with the option to raise fan speed when cooling demand increases.
Spec Summary
| Attribute | Value |
|---|---|
| Best For | Three-fan PC case cooling setups, including radiator configurations where airflow must work against resistance |
| Fan Configuration | Three 140mm air-cooling case fans |
| Fan Control And Speed | 4-pin PWM connection with speeds up to 1800 RPM |
| Airflow And Noise | Airflow capacity of 72 CFM with a noise level of 30.5 dB |
| Bearing | Rifle bearing |
| Power And Voltage | 6W at 12V |
| Dimensions And Color | 5.5 × 1 × 5.5 inches; black |
| Model Identifiers | be quiet! model BL138 |