be quiet! SILENT WINGS PRO 4 Fan 120mm Black
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About This Item
- 12 cm black computer case fan with PWM control
- Fluid Dynamic Bearing for quiet, long-lasting operation
- 3000 RPM max speed with 36.9 dB noise level
- 83.9 CFM airflow and 5.31 mmH2O pressure for efficient cooling
- 4-pin connector with 0.5 m cable for easy installation
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be quiet! Silent Wings Pro 4 | High-Performance 120mm PWM Fan
The be quiet! Silent Wings Pro 4 120mm PWM Computer case Fan delivers legendary silence and epic performance for UK PC builders seeking premium cooling. This German-engineered 120mm fan combines advanced Fluid Dynamic Bearing technology with three selectable speed options to create the most progressive cooling solution for demanding systems.
Key Specifications
| Metric | Spec |
|---|---|
| Bearing Type | Fluid Dynamic Bearing (FDB) |
| Maximum Airflow | 83.9 CFM |
| Noise Level (High Speed) | 36.9 dB |
| Power Consumption | 3.6 W |
| MTBF | 300,000 hours |
| Connector | 4-pin PWM |
Advanced Cooling Technology
The Silent Wings Pro 4 features optimized fan blades specifically designed for heat sinks and radiator corners. The Fluid Dynamic Bearing construction ensures whisper-quiet operation while maintaining exceptional durability with a 300,000-hour MTBF rating. The PWM support allows for intelligent speed control, automatically adjusting performance based on system demands to balance cooling efficiency with noise reduction.
Versatile Installation Options
This 120mm fan offers three selectable speed settings through a built-in switch, providing flexibility for different cooling requirements. Whether you’re building a high-performance gaming rig or a quiet home office system, you can fine-tune the fan’s operation. The 4-pin PWM connector ensures compatibility with modern motherboards for automatic speed control, while the included screws make installation straightforward.
Professional Build Quality
Crafted in Germany, this fan meets rigorous quality standards with CE, ROHS, UKCA, TÜV, and WEEE certifications. The black finish and compact 120x120x25mm dimensions make it suitable for virtually any computer case configuration. With a 0.5m cable length, it provides adequate reach for most builds without excess cable management concerns.
Box Contents
- be quiet! Silent Wings Pro 4 120mm PWM Fan
- Mounting screws (4)
- User documentation
Check Before You Buy
- Confirm your case has a 120mm fan mounting point
- Verify your motherboard supports 4-pin PWM fans
- Check available 12V power supply capacity for additional fans
- Ensure adequate clearance for 25mm fan depth
Frequently Asked Questions
Q: What makes this fan different from standard case fans?
A: The Fluid Dynamic Bearing technology and optimized blade design provide superior silence and longevity compared to standard sleeve bearing fans.
Q: Can I control the fan speed manually?
A: Yes, there’s a physical switch on the fan that allows selection between three different speed settings.
Q: Is this fan suitable for radiator mounting?
A: Yes, the optimized blade design specifically accommodates radiator and heat sink applications.
Q: What’s the power consumption at maximum speed?
A: The fan consumes 3.6W at maximum operation, drawing 0.33A current.
Q: How long is the warranty period?
A: This product is covered by the standard Manufacturer Warranty.
The Consultant’s Verdict & Warranty
The be quiet! Silent Wings Pro 4 represents an excellent choice for UK PC enthusiasts who prioritize both cooling performance and acoustic comfort. The German engineering, FDB technology, and selectable speed options make it ideal for high-end builds where noise reduction matters without compromising thermal efficiency. Whether you’re water cooling, air cooling, or building a silent workstation, this fan delivers professional-grade performance backed by comprehensive certifications and manufacturer warranty coverage.
| Performance | |
|---|---|
| Suitable location | Computer case |
| Fan connector | 4-pin |
| Pulse-width modulation (PWM) support | Yes |
| Rotational speed (max) | 3000 RPM |
| Bearing type | Fluid Dynamic Bearing (FDB) |
| 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 |
| Mean time between failures (MTBF) | 300000 h |
| Quantity per pack | 1 pc(s) |
| Design | |
| Fan connector | 4-pin |
| Product colour | Black |
| Certification | CE / ROHS / RU / UKCA / TÜV / WEEE |
| Cable length | 0.5 m |
| Technical details | |
| 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 |
| Cable length | 0.5 m |
| Fan connector | 4-pin |
| Ports & interfaces | |
| Fan connector | 4-pin |
| Power | |
| 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 |
| Colour | |
| Product colour | Black |
| Weight & dimensions | |
| Fan dimensions (W x D x H) | 120 x 120 x 25 mm |
| Package depth | 192 mm |
| Package width | 141 mm |
| Package height | 31 mm |
| Width | 120 mm |
| Package weight | 400 g |
| Depth | 120 mm |
| Height | 25 mm |
| Weight | 227 g |
| Cable length | 0.5 m |
| Endurance | |
| Mean time between failures (MTBF) | 300000 h |
| Packaging data | |
| Package depth | 192 mm |
| Package width | 141 mm |
| Package height | 31 mm |
| Package weight | 400 g |
| Certificates | |
| Certification | CE / ROHS / RU / UKCA / TÜV / WEEE |
| Packaging content | |
| Screws included | Yes |
| Number of clips | 4 |
| Other features | |
| Country of origin | Germany |
| Harmonized System (HS) code | 84733080 |
| Logistics data | |
| 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 |

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