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White 120mm PWM case fan, square frame 25mm deep, nine translucent blades, no LED lighting

be quiet!

be quiet! BL118 Silent Wings Pro 4 120mm PWM White case fan

SKU CH-7MR5-Q8NVM MPN BL118

A 120 mm PWM case fan with a fluid-dynamic bearing, speed switch up to 3000 rpm and 80-85 CFM airflow at 36.9 dBA

  • Fan Counts1 Fan
  • TypeCase Fan
  • Fan Size120mm
  • Bearing TypeFluid Dynamic
  • RPM3000 RPM
  • Air Flow80-85 CFM

Option 140mm PWM

Struck-through versions exist but are not stocked here.

Color White

  • Optimised blades deliver peak airflow on radiators and heatsinks
  • Speed switch selects medium, high or ultra-high PWM limits up to 3000 rpm
  • Funnel-shaped frame and minimal tip clearance create extreme static pressure
  • 6-pole motor with fluid-dynamic bearing cuts vibration for smooth running
  • Separate mounting kits included for case or radiator installation

Silent Wings Pro 4 120mm PWM White fan

The be quiet! BL118 is a 120mm PWM case fan designed for builders who prioritise low noise and high static pressure. Its fluid-dynamic bearing and 6-pole motor deliver smooth operation across the speed range. The white, non-LED frame suits clean, light-themed builds.

Upgrade from standard case fans

The jump is worthwhile when your current fans cannot push enough air through a dense radiator or heatsink without becoming loud. A three-position speed switch lets you cap the maximum at medium, high or ultra-high RPM without software. Mounting hardware covers both case and radiator installations.

Handles 80 to 85 CFM at up to 3000 RPM

This airflow and pressure headroom covers most single-radiator liquid loops and high-end air coolers. The 25mm thickness fits standard fan mounts. It runs out of steam in dual-radiator stacks or heavily restricted chassis where even higher static pressure is required.

Highlights

  • Optimised blades deliver peak airflow on radiators and heatsinks
  • Speed switch selects medium, high or ultra-high PWM limits up to 3000 rpm
  • Funnel-shaped frame and minimal tip clearance create extreme static pressure
  • 6-pole motor with fluid-dynamic bearing cuts vibration for smooth running
  • Separate mounting kits included for case or radiator installation

Specifications

Brandbe quiet!
Fan Counts1 Fan
TypeCase Fan
Fan Size120mm
Bearing TypeFluid Dynamic
RPM3000 RPM
Air Flow80-85 CFM
Noise Level36.9 dBA at max RPM
Power Connector4-pin PWM
ColorWhite
LEDNon-LED
Dimensions120 x 120 x 25 (mm)
Shipping weight0.45 kg
Package size203 × 140 × 38 mm

Other versions of this model

3 more in the same range

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

Questions about this item

Does the 120 mm frame with 25 mm thickness fit standard case mounts and radiators?

Yes, the 120 x 120 x 25 mm dimensions match standard case fan and radiator mounting holes.

How do I use the speed switch to change the maximum PWM limit?

Move the physical switch on the fan frame to select medium, high or ultra-high speed up to 3000 RPM before powering on.

When should I consider replacing the fluid-dynamic bearing?

The bearing is rated for long life; replace the fan if noise rises above 36.9 dBA or airflow drops below 80 CFM.

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