be quiet! Silent Wings Pro 4 Fan
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About This Item
- 120 mm PWM fan for computer case cooling
- Fluid Dynamic Bearing for quiet operation
- 3000 RPM max speed with 83.9 CFM airflow
- 4-pin connector with PWM support
- 36.9 dB noise at high speed
- 300,000-hour MTBF for long-term reliability
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be quiet! Silent Wings Pro 4 | 120mm PWM Fan
The be quiet! Silent Wings Pro 4 120mm PWM fan delivers legendary silence and epic performance for PC builders who demand the best cooling without the noise. This high-end case fan features a fluid dynamic bearing, selectable speed modes, and optimized blades for maximum airflow and pressure.
Key Specifications
| Metric | Spec |
|---|---|
| Fan Size | 120mm |
| Bearing Type | Fluid Dynamic Bearing |
| Max Speed | 3000 RPM |
| Airflow | 142.5 m³/h |
| Noise Level | 36.9 dB |
| Connector | 4-pin PWM |
Whisper-Quiet Performance
The Silent Wings Pro 4 achieves its near-silent operation through a sophisticated fluid dynamic bearing that reduces friction and vibration. At maximum speed, the fan produces just 36.9 dB of noise – quieter than a normal conversation. The optimized blade design and specially engineered corners minimize turbulence, creating a smooth, quiet airflow that won’t disturb your work or gaming sessions.
Advanced Cooling Technology
This fan isn’t just quiet – it’s also incredibly powerful. With a maximum airflow of 142.5 m³/h and air pressure of 5.31 mmH2O, it can handle even the most demanding cooling scenarios. The 120mm size fits standard case mounting points, while the 25mm thickness provides optimal clearance for most builds. Whether you’re cooling a CPU heatsink, GPU, or entire case, this fan delivers consistent, reliable performance.
Precision Control with PWM
The 4-pin PWM connector allows your motherboard to precisely control fan speed based on temperature, ensuring you get cooling when you need it without wasting power when you don’t. The built-in speed switch offers three selectable modes, letting you balance between maximum cooling and minimum noise depending on your needs. This intelligent control system helps extend the fan’s impressive 300,000-hour MTBF rating.
What is in the box
- be quiet! Silent Wings Pro 4 120mm PWM fan
- Mounting screws (4)
- Cable ties
Check before you buy
- Confirm your case has 120mm mounting points
- Verify your motherboard supports 4-pin PWM fans
- Check available clearance – fan is 25mm thick
- Ensure your power supply can provide 12V/0.3A
Questions and answers
What makes this fan different from other 120mm fans?
Can I use this fan for my CPU cooler?
How long will this fan last?
Is the cable long enough for most builds?
What certifications does this fan have?
Is it worth it?
The be quiet! Silent Wings Pro 4 is the ideal choice for PC enthusiasts, gamers, and professionals who refuse to compromise between cooling performance and acoustic comfort. Its German engineering, premium bearing technology, and intelligent control make it worth the investment for anyone building a high-end system. Covered by the applicable manufacturer warranty.
| Weight | 0.4 kg |
|---|---|
| Certification | CE, ROHS, RU, UKCA, TÜV, WEEE |
| Suitable location | Computer case |
| Pulse-width modulation PWM support | Yes |
| Rotational speed max | 3000 RPM |
| Bearing type | Fluid Dynamic Bearing (FDB) |
| Quantity per pack | 1 pc(s) |
| Noise level high speed | 36.9 dB |
| Type | Fan |
| Fan diameter | 12 cm |
| Maximum airflow | 83.9 cfm |
| Maximum air pressure | 5.31 mmH2O |
| Airflow | 142.5 m³/h |
| Fan connector | 4-pin |
| Rated voltage | 12 V |
| Voltage | 7 – 13.2 V |
| Rated current | 0.3 A |
| Power consumption typical | 3.6 W |
| Maximum current | 0.33 A |
| Product colour | Black |
| Fan dimensions W x D x H | 120 x 120 x 25 mm |
| Width | 120 mm |
| Depth | 120 mm |
| Height | 25 mm |
| Weight | 227 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 | 400 g |
| Screws included | Yes |
| Number of clips | 4 |
| Country of origin | Germany |
| 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 | 17.2 kg |
| Products per shipping inner case | 40 pc(s) |
| Harmonized System HS code | 84733080 |
| Distributor SKUs | FABEQ-BL098, 573310, CF18059, STD10229123, 1935645 |
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