BE QUIET Silent Wings 4 140mm PWM Case Fan
BE QUIET

BE QUIET Silent Wings 4 140mm PWM Case Fan

  • Power consumption (typical)4.8 W
  • Airflow133.2
  • Width140 mm
  • Fan connector4-pin

The Silent Wings 4 140mm PWM delivers serious cooling performance without the noise. Built for high-end systems where silence matters, this fan combines a 6-pole motor with optimized blades to keep temperatures in check while staying genuinely quiet even at full speed.

  • 6-pole motor and anti-vibration mounts cut vibration and power draw for smooth, near-silent operation
  • Funnel-shaped air outlets and minimal blade clearance generate high pressure—perfect for radiators and heatsinks
  • PWM control via motherboard lets you set the speed you need, when you need it
  • Rated for 300,000 hours of continuous run, so it'll outlast most builds

Description

Cooling that doesn't announce itself

Pick this up if you're building a quiet rig, upgrading a radiator setup, or replacing a loud fan that's driving you up the wall.

Specifications

General

BrandBE QUIET
Model nameSilent Wings 4
Product colourBlack
TypeFan
Bearing typeFluid Dynamic Bearing (FDB)
Fan diameter140
Number of clips4
Number of screws4
Suitable locationComputer case
Shipping (inner) case width317
Shipping (inner) case height388
Shipping (inner) case length463
Mean time between failures (MTBF)300000
Products per shipping (inner) case32
Shipping (inner) case gross weight13680
Warranty60 months
EAN4260052188897

Ports

Fan connector4-pin

Battery & power

Power consumption (typical)4.8 W
Cable length0.5 m
Voltage5 - 13.2
Rated current0.4
Rated voltage12
Maximum current0.4

Performance & capacities

Airflow133.2
Maximum airflow78.4
Maximum air pressure2.36
Rotational speed (max)1900
Noise level (high speed)29.3

Features

Screws includedYes
Pulse-width modulation (PWM) supportYes

Dimensions & weight

Width140 mm
Depth140 mm
Height25 mm
Weight220 g
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