be quiet! Silent Wings 4 120mm PWM Fan
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About This Item
- 12 cm black computer case fan
- 4-pin PWM connector for precise speed control
- Fluid Dynamic Bearing for quiet operation
- Maximum airflow of 48.7 cfm and 1.79 mmH2O pressure
- Noise level of 18.9 dB at high speed
- 6-pole motor with anti-vibration mountings
- Mean time between failures of 300,000 hours
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be quiet! Silent Wings 4 | 120mm PWM Fan
The be quiet! Silent Wings 4 120mm PWM Computer case Fan delivers virtually inaudible operation with extreme performance for high-end systems. Featuring a 6-pole motor and anti-vibration mountings, this fan combines advanced engineering with optimised blade design to achieve maximum airflow without the noise penalty.
Quick Specs
| Metric | Spec |
|---|---|
| Bearing Type | Fluid Dynamic Bearing (FDB) |
| Max Speed | 1600 RPM |
| Airflow | 48.7 CFM / 82.74 m³/h |
| Noise Level | 18.9 dB |
| Power | 1.44 W |
| MTBF | 300,000 hours |
Whisper-Quiet Performance for Demanding Systems
The Silent Wings 4 series sets a new benchmark for quiet computing. Its 6-pole motor design provides smoother operation and reduced vibration compared to standard 4-pole designs, while the Fluid Dynamic Bearing ensures silent, long-lasting performance. The anti-vibration rubber corners eliminate transfer of motor noise to your case, making this fan virtually undetectable even at maximum speed.
Engineered Airflow for Maximum Cooling
Optimised fan blades create superior static pressure and airflow efficiency. With 48.7 CFM of maximum airflow and 1.79 mmH2O of pressure, this 120mm fan handles both high-airflow and high-pressure applications. Whether you’re cooling a CPU heatsink, GPU, or creating positive case pressure, the aerodynamic design maintains excellent performance across the entire speed range.
PWM Control for Intelligent Speed Management
Pulse Width Modulation support allows your motherboard to control fan speed dynamically based on system temperature. This means the fan runs at minimal RPM during light loads for near-silent operation, then ramps up automatically when cooling demands increase. The 4-pin connector ensures full compatibility with modern PWM fan headers.
Box Contents
- be quiet! Silent Wings 4 120mm PWM Fan
- 4 mounting screws
- 4 anti-vibration rubber clips
Before you order
- Confirm your case has a 120mm fan mounting point
- Verify your motherboard has a 4-pin PWM fan header
- Check clearance around the mounting location (25mm depth)
- Ensure your system can supply 12V DC power
Buyer FAQs
What makes this fan quieter than standard fans?
Can I use this fan without PWM control?
How long will this fan last?
Is this fan suitable for radiator mounting?
Buying advice
The be quiet! Silent Wings 4 120mm PWM represents the pinnacle of quiet cooling technology, perfect for enthusiasts building silent high-performance systems. Its combination of advanced motor design, premium bearing technology, and intelligent speed control delivers exceptional cooling without the acoustic penalty. Covered by the applicable manufacturer warranty.
| Weight | 0.35 kg |
|---|---|
| Certification | CE, ROHS, RU, UKCA, TÜV, WEEE |
| Suitable location | Computer case |
| Pulse-width modulation PWM support | Yes |
| Rotational speed max | 1600 RPM |
| Bearing type | Fluid Dynamic Bearing (FDB) |
| Quantity per pack | 1 pc(s) |
| Noise level high speed | 18.9 dB |
| Type | Fan |
| Fan diameter | 12 cm |
| Maximum airflow | 48.7 cfm |
| Maximum air pressure | 1.79 mmH2O |
| Airflow | 82.74 m³/h |
| Compliance certificates | CE, RoHS, WEEE |
| Fan connector | 4-pin |
| Rated voltage | 12 V |
| Voltage | 5 – 13.2 V |
| Rated current | 0.12 A |
| Power consumption typical | 1.44 W |
| Maximum current | 0.13 A |
| Product colour | Black |
| Width | 120 mm |
| Depth | 120 mm |
| Height | 25 mm |
| Weight | 190 g |
| Cable length | 0.5 m |
| Mean time between failures MTBF | 300000 h |
| Package depth | 192 mm |
| Package width | 141 mm |
| Package height | 31 mm |
| Package weight | 343 g |
| Screws included | Yes |
| Number of screws | 4 |
| Number of clips | 4 |
| Country of origin | China |
| Shipping inner case width | 38.7 cm |
| Shipping inner case length | 43.2 cm |
| Shipping inner case height | 37.5 cm |
| Shipping inner case gross weight | 14.9 kg |
| Products per shipping inner case | 40 pc(s) |
| Harmonized System HS code | 84733080 |
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