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White 140 mm PWM case fan with smooth blades and anti-vibration mounts

be quiet!

be quiet! Silent Wings 4 140mm PWM high-Speed White case fan

SKU CH-RRN3-KYDXD

A 140 mm PWM case fan with optimised blades for high static pressure on radiators and heatsinks, a 6-pole motor and fluid-dynamic bearing rated to 300000 hours.

  • Optimised blades deliver highest performance on radiators and heat sinks
  • Funnel-shaped outlets with minimal tip clearance create extreme air pressure
  • 6-pole motor plus fluid-dynamic bearing cut vibration for ultra-smooth operation
  • Anti-vibration push pins and screw mounts simplify silent installation
  • 300000-hour rated lifespan ensures long-term reliability

140 mm high-speed PWM fan

The be quiet! Silent Wings 4 is a 140 mm case fan built for high static pressure on radiators and dense heat sinks. Its PWM control allows precise speed regulation from the motherboard. The all-white finish suits clean, light-themed builds. It targets builders who need strong airflow through restrictive cooling arrays.

Thermals, noise and power draw

Optimised blades and a funnel-shaped frame outlet raise air pressure while keeping acoustic output low even at maximum RPM. A 6-pole motor paired with a fluid-dynamic bearing reduces vibration for smooth operation across the speed range. The design prioritises quiet cooling performance under sustained load.

Mounting and longevity

Anti-vibration push pins are included for quick installation, and a screwed mounting option is also supported for a more secure fit. The bearing is rated for up to 300000 operating hours, backing the five-year manufacturer warranty. No extra software or lighting controllers are bundled with the fan.

Punti di forza

  • Optimised blades deliver highest performance on radiators and heat sinks
  • Funnel-shaped outlets with minimal tip clearance create extreme air pressure
  • 6-pole motor plus fluid-dynamic bearing cut vibration for ultra-smooth operation
  • Anti-vibration push pins and screw mounts simplify silent installation
  • 300000-hour rated lifespan ensures long-term reliability

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Domande su questo articolo

How do I install the be quiet! Silent Wings 4 140mm PWM high-Speed White case fan and which step do people often miss?

Use the included anti-vibration push pins for quick mounting or screws for a secure fit; the step often missed is aligning the funnel-shaped frame outlets correctly so air pressure stays high on radiators.

What maintenance or replacement will the be quiet! Silent Wings 4 140mm PWM high-Speed White case fan need later?

The fluid-dynamic bearing is rated for up to 300000 hours of operation, so no regular maintenance is required; replacement is only needed if the motor wears out after that lifespan.

What limit appears first on the be quiet! Silent Wings 4 140mm PWM high-Speed White case fan during sustained use?

The 6-pole motor and fluid-dynamic bearing keep vibration low, so the practical limit is the maximum PWM speed where airflow pressure peaks before acoustic noise rises.

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