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White 120mm PWM case fan with all-white frame and blades

be quiet!

be quiet! BL114 Silent Wings 4 120mm PWM White case fan

SKU CH-CAP1-YM57D MPN BL114

A 120 mm white case fan with fluid-dynamic bearing and PWM control for high static pressure and near-silent operation

  • Fan size120 mm
  • Number of fans1 Fan
  • Bearing designFluid Dynamic Bearing
  • LED lightingNon-LED
  • Product typeCase Fan
  • Product colorWhite

Model 120mm PWM

Color White

  • Optimized blades deliver high static pressure on heat sinks
  • Funnel-shaped frame outlets maximize airflow pressure with minimal tip clearance
  • 6-pole motor with fluid-dynamic bearing reduces vibration for smooth operation
  • Anti-vibration push pins and screw mounts isolate case resonance
  • Rated lifespan reaches 300000 hours in all-white design

120mm PWM Case Fan

The be quiet! Silent Wings 4 120mm PWM White is a single case fan built for builders who want low noise without sacrificing airflow. Its white frame and blades suit clean, all-white system themes. The fluid dynamic bearing and six-pole motor keep vibration minimal during continuous operation. It mounts with either push pins or screws for flexible installation.

Fluid Dynamic Bearing

The bearing type is the deciding specification for longevity and acoustic profile. A fluid dynamic bearing reduces friction compared to sleeve or rifle alternatives, enabling the rated 300,000 hour lifespan. It also supports the virtually inaudible operation at regular speeds that defines this model. Buyers needing a simpler, lower-cost bearing for light-duty builds should look elsewhere.

High Static Pressure Headroom

Optimized blades and a funnel-shaped frame outlet generate high static pressure, so the fan moves air through dense heat-sink fins or radiator channels without stalling. At standard PWM speeds it remains practically silent while delivering strong cooling headroom for overclocked CPUs or multi-GPU setups. In wide-open cases with no airflow restriction the pressure advantage is less critical, so pure airflow fans may suffice.

How it compares

Measured against everything we stock in PC Cooling Fans, at today’s prices. Recalculated every night.

Price $22.99
Pricier than about 58% of the 8,339 comparable items (median $19.99).
Fan size 120 mm
Typical for this category: the median of 1,114 items is 120 mm.

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Specifications

Product
Brand namebe quiet!
Product typeCase Fan
Product colorWhite
Size & build
Fan size120 mm
Number of fans1 Fan
Bearing designFluid Dynamic Bearing
Shipping weight0.05 kg
Package size203 × 140 × 38 mm
More details
LED lightingNon-LED

Other versions of this model

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Questions about this item

How quiet is the fan when running at normal speeds inside a PC?

The Silent Wings 4 is designed for virtually inaudible operation at regular speed, using a 6-pole motor and fluid-dynamic bearing to minimise vibration and noise.

What connector does the fan use and what control does it allow?

It uses a standard 4-pin PWM connector, letting the motherboard regulate speed automatically based on temperature.

What mounting hardware is included for installation?

The package includes anti-vibration push pins for tool-free mounting and also supports traditional screw installation.

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