be quiet! Silent Wings 4 120mm PWM High-Speed Fan

The Silent Wings 4 120mm PWM high-speed delivers exceptional performance for demanding PC cooling applications. Engineered with precision-optimized fan blades and minimal tip clearance, this 120mm fan achieves 2500RPM while maintaining remarkably quiet operation at just 31.2dB(A).

High-Performance Cooling Technology

Designed for radiators and heatsinks, the Silent Wings 4 features funnel-shaped air outlets that generate 3.96mm H2O air pressure and 76.7 CFM airflow. The advanced 6-pole motor technology with three phases reduces vibration and power consumption to just 2.4W, while the fluid-dynamic bearing (FDB) ensures smooth, reliable operation for up to 300,000 hours.

Dual Mounting System

This fan includes two mounting options: pre-installed anti-vibration push pins for case installation and hard plastic mountings for radiator and heatsink applications. Both systems minimize noise-generating vibrations for virtually silent operation at mid-speed ranges.

Premium Build Quality

The all-black design features a black frame and black blades with a high-grade fan sticker. The 4-pin PWM connector with 500mm sleeved cable provides flexible installation options, while the 190g construction ensures durability without excessive weight.

Technical Specifications

General Data
Model: Silent Wings 4 120mm PWM high-speed
Dimensions (mm): 120
Color option: Black
Lighting: -
Fan speed @ 100% PWM / 12V (rpm): 2500
Noise level @ 100% PWM / 12V (dB(A)): 31.2
Air Flow @ 100% PWM / 12V (CFM / m3/h): 76.7 / 130.31
Air Pressure @ 100% PWM / 12V (mm H2O): 3.96

Mechanical Specifications
Dimensions (L x W x H), (mm): 120 x 120 x 25
Weight incl. fixed cables (g): 190
Bearing technology: FDB
Motor technology: 6-pole fan motor
Push pin fixing: Yes
Screw fixing: Yes

Cables / Connectors
Daisy chain for lighting signal: -
Lighting connector: -
Connector: 4-pin PWM
Cable length (mm): 500
Cable sleeve: Yes

Performance / Noise
Air Flow @ 100% PWM / 12V (CFM / m3/h): 76.7 / 130.31
Air Pressure @ 100% PWM / 12V (mm H2O): 3.96
Noise level @ 100% PWM / 12V (dB(A)): 31.2
Lifespan (h / 25°C): 300,000

Electrical Specifications
Rated Voltage DC (V): 12
Operating Voltage DC (V): 5 - 13.2
Current consumption (A): 0.20
Safety current (A): 0.22
Input power (W): 2.4
Rated Current LED (A): -

Accessories
3-pin to 4-pin 12V-connector: -
12V to 7V adapter: -
12V to 5V adapter: -
Screws: 4
Push pins: 4
hard plastic washer: -
Others: Rubber & hard plastic mountings

Safety Certification
Approvals: CE / RoHs / RU / UKCA / TUV / WEEE

Environmental Directives
RoHs: -
Triman: -

Logistics Data
Article number: BL094
Dimensions, package (L x W x H), (mm): 192 x 141 x 31
Gross weight, package (kg): 0.346

• Product Type: Case Fan
• Fan Size: 120mm
• Max Fan Speed: 2500RPM
• Fan Shroud Colour: Black
• LED Colour: None
• Connections: 4-Pin Fan