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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 size120 mm
  • Number of fans1 Fan
  • Bearing designFluid Dynamic
  • Rotational speed3,000 RPM
  • Airflow rate80-85 CFM
  • Operating noise36.9 dBA at max RPM

Model 140mm PWM

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.

How it compares

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

Price $30.99
Pricier than about 76% 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
Performance
Rotational speed3,000 RPM
Airflow rate80-85 CFM
Power
Power input connector4-pin PWM
Size & build
Fan size120 mm
Number of fans1 Fan
Bearing designFluid Dynamic
Product dimensions120 × 120 × 25 (mm)
Shipping weight0.45 kg
Package size203 × 140 × 38 mm
Environment & compliance
Operating noise36.9 dBA at max RPM
More details
LED lightingNon-LED

Other versions of this model

3 more in the same range

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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