be quiet! SILENT WINGS PRO 4 140mm Fan

be quiet! Silent Wings Pro 4 | 140mm PWM PC Case Fan

The be quiet! Silent Wings Pro 4 140mm PWM Computer Case Fan delivers legendary silence and epic performance for serious PC builders. This 140mm case fan combines advanced fluid dynamic bearing technology with PWM speed control to provide exceptional cooling while maintaining whisper-quiet operation.

Key Specifications

Ultra-Quiet Operation for Silent Builds

The Silent Wings Pro 4 utilises fluid dynamic bearing technology to achieve remarkably low noise levels, operating at just 36.8 dB at maximum speed. This makes it ideal for HTPCs, home offices, and any build where noise reduction is paramount. The advanced bearing design not only minimises noise but also extends the fan’s lifespan to an impressive 300,000 hours MTBF.

High-Performance Cooling Capability

With an airflow rating of 165.5 m³/h and maximum air pressure of 3.64 mmH2O, this fan delivers exceptional cooling performance. The optimised fan blades are specifically designed to work efficiently with heat sinks and radiators, making it versatile enough for both case ventilation and direct component cooling. The 140mm size provides excellent static pressure for radiator mounting.

Precision Speed Control

Featuring 4-pin PWM support, the Silent Wings Pro 4 offers precise speed control through your motherboard’s fan headers. This allows the fan to automatically adjust its speed based on system temperature, ensuring optimal cooling when needed while maintaining silence during light loads. The fan operates across a voltage range of 7-13.2V for flexible compatibility.

Premium German Engineering

Crafted in Germany, this fan reflects be quiet!’s commitment to quality and performance. The robust construction includes four mounting screws and four clips for secure installation, while the 0.5m cable provides adequate reach for most builds. The black finish complements any system aesthetic, and comprehensive certifications including CE, ROHS, UKCA, and TÜV ensure compliance with international standards.

Box Contents

• 1 x be quiet! Silent Wings Pro 4 140mm PWM Fan
• 4 x Mounting screws
• 4 x Installation clips

Check before you buy

• Confirm your case supports 140mm fan mounting
• Verify your motherboard has available 4-pin fan headers
• Check clearance for the 25mm fan depth in your setup
• Ensure your power supply can provide the 6W power requirement

Frequently Asked Questions

Q: Is this fan suitable for radiator mounting?

A: Yes, the high static pressure rating of 3.64 mmH2O makes it excellent for radiator applications.

Q: Can I control the fan speed manually?

A: The PWM functionality allows automatic speed control via your motherboard, though manual control depends on your motherboard’s software capabilities.

Q: What is the expected lifespan of this fan?

A: With fluid dynamic bearing technology, the MTBF is rated at 300,000 hours under normal operating conditions.

Q: Does this fan come with anti-vibration mounting?

A: The package includes standard mounting screws and clips, but specific anti-vibration features would need to be confirmed with the manufacturer.

The Consultant’s Verdict & Warranty

The be quiet! Silent Wings Pro 4 140mm PWM is the definitive choice for users who refuse to compromise between silence and performance. Its fluid dynamic bearing, PWM control, and German engineering make it perfect for high-end builds where noise reduction is critical. Covered by the standard Manufacturer Warranty.