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  3. Fans & PC Cooling
  4. Case Fans
  5. be quiet!
  6. Item#: 1YF-001D-000S5

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Shop All Be quiet! Products
be quiet! SILENT WINGS PRO 4 - 140mm PWM White
  • Optimized fan blades for the highest performance on radiators and heat sinks
  • Speed switch allows changing maximum PWM speed between medium-speed, high-speed and ultra-high-speed (up to 2400 rpm)
  • Small tip clearance and a fan frame with a funnel-shaped air outlet for extremely high air pressure
  • Virtually inaudible operation at regular speed
  • 6-pole fan motor and fluid-dynamic bearing for less vibration and very smooth operations
  • Individual mounting systems for use as a case fan or with a radiator
  • 5-year manufacturer warranty
  • $38.90 –