Article number: BL027


140mm PWM

Whisper Quiet and Perfect Cooling

be quiet! Shadow Wings 140mm PWM offers whisper-quiet operation for gaming or entertainment PCs and home theater systems. Key features include:

  • Low-noise operation of up to 18.4dB(A)
  • Reliable rifle-bearing technology
  • Airflow-optimized surface structure of the fan blades
  • PWM controlled fan speed through the motherboard
  • Simple assembly due to screwless installation
  • High-quality IC motor controller reduces electrical noise
  • Rubberized fan frame for less vibration
  • Product conception, design and quality control in Germany
  • 3-year manufacturer’s warranty
Product not available in your country.

Very quiet operation

  • Low-noise operation due to high-quality rifle bearing. The parallel arrangement of recesses on the outer side of the bearing shaft ensure uniform circulation of the high-quality oil and make the fan very quiet. Mechanical noise is minimized by antivibration fasteners and the rubberized fan frame. The high-quality IC motor controller reduces electrical noise sources.

Long service life

  • Reliable cooling for up to 200,000 hours thanks to the high-quality rifle bearing.

High air flow

  • The flow-optimized surface structure of the fan blades produce more air flow in combination with smooth running.

Simple assembly

  • Screwless installation makes handling simple.


  • 3 year manufacturer guarantee.
All models at a glance:


General data

Model Shadow Wings 140mm 1000rpm
Dimensions (mm) 140
+SilentWings -
Fan speed @ 12V (rpm) 1,000
Air flow @ 12V (cfm / m3/h) 60.4 / 101.9
Air pressure @ 12V (mm H2O) 0.81
Noise level @ 12V (dB(A)) 18.4


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Mechanical specifications

Dimensions (L x W x H), (mm) 140 x 140 x 25
Bearing technology Rifle
Motor technology 4-pole fan motor
Weight incl. fixed cables (kg) 0.30
Push pin fixing
Screw fixing -

Cables / Connectors

Connector 4-pin PWM
Cable length (mm) 450
Cable sleeve -

Performance / Noise

Air flow @ 12V (cfm / m3/h) 60.4 / 101.9
Air pressure @ 12V (mm H2O) 0.81
Noise level @ 12V (dB(A)) 18.4
Lifespan (h / 25°C) 200.000

Electrical specifications

Rated voltage DC (V) 12
Operating voltage DC (V) 5 ~ 12
Current consumption (A) 0.08
Safety current (A) 0.20
Input power (W) 0.96


3-pin to 4-pin 12V-connector -
12V to 7V adapter -
12V to 5V adapter -
Screws -
Push pins 5
Silica gel washer 5
Others -

Safety certification

Approvals CE, RoHS, WEEE, RU, Tüv


Warranty (Years) 3
International hotline / free of charge ✓ / DE, FR

Logistics data, RRP

Article number BL027
EAN code 4260052182673
Dimensions, package (L x W x H), (mm) 185 x 145 x 41
Gross weight, package (kg) 0.292
Pieces per packaging unit 40
Dimensions, shipping box (L x W x H), (mm) 445 x 400 x 320
Gross weight, shipping box (kg) 11.90
RRP (€) 19.50

Article number: BL027