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White 140mm PWM case fan with nine blades and smooth frame

be quiet!

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

SKU CH-1E0W-GTRRH

White 140 mm PWM case fan with fluid-dynamic bearing delivers 50-55 CFM airflow at 13.6 dBA for quiet, high-pressure cooling

  • Fan Size140mm
  • LEDNon-LED
  • TypeCase Fan
  • Bearing TypeFluid Dynamic Bearing
  • RPM1100
  • Air Flow50-55 CFM

Option 140mm PWM

Struck-through versions exist but are not stocked here.

Color White

  • Quiet cooling at just 13.6 dBA maximum noise
  • High static pressure from optimised blades and funnel frame
  • Smooth, low-vibration running via 6-pole motor and fluid-dynamic bearing
  • Flexible fitting with anti-vibration push pins or screw mounts
  • Long-life reliability rated to 300000 operating hours

140mm PWM case fan in white

The be quiet! Silent Wings 4 is a 140mm case fan designed for low-noise cooling. It uses a fluid-dynamic bearing and a 6-pole motor to reduce vibration. The all-white finish suits clean, light-themed builds. PWM control allows precise speed adjustment via a 4-pin connector.

Ideal for quiet-focused builds and radiator use

This fan suits builders who prioritise silent operation on heat sinks or radiators. Its high static pressure design performs well in restricted airflow paths. Users needing RGB lighting should look elsewhere, as this model has no LEDs. Builders requiring higher maximum airflow for open-case configurations may prefer a different specification.

13.6 dBA at 1100 RPM with 50-55 CFM

The maximum noise level is 13.6 dBA when running at the rated 1100 RPM speed. Airflow ranges between 50 and 55 CFM at that speed. This balance of low noise and usable airflow determines if the fan matches your thermal and acoustic targets.

Highlights

  • Quiet cooling at just 13.6 dBA maximum noise
  • High static pressure from optimised blades and funnel frame
  • Smooth, low-vibration running via 6-pole motor and fluid-dynamic bearing
  • Flexible fitting with anti-vibration push pins or screw mounts
  • Long-life reliability rated to 300000 operating hours

Specifications

Brandbe quiet!
Part NumberBL116
Fan Size140mm
LEDNon-LED
TypeCase Fan
Bearing TypeFluid Dynamic Bearing
RPM1100
Air Flow50-55 CFM
Noise Level13.6 dBA at max RPM
Power Connector4-pin PWM
ColorWhite
Fan Counts1 Fan
Shipping weight0.05 kg
Package size203 × 140 × 38 mm

Other versions of this model

5 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

What comes in the box and do I need extra screws?

One 140mm white fan with 4-pin PWM connector, anti-vibration push pins and mounting screws are included — nothing else is required for installation.

There is only one version listed — how do I know it suits my build?

The single 140mm PWM model delivers 50-55 CFM at 1100 RPM and 13.6 dBA, fitting any 140mm case, radiator or heatsink mount.

What does 13.6 dBA at 1100 RPM mean once the fan is running in my PC?

At full speed the fan runs at 1100 RPM while producing only 13.6 dBA, so it stays virtually inaudible even under load.

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