be quiet! Silent Wings Pro 4 Case Fan 120 mm PWM

be quiet! Silent Wings Pro 4 – Silent Case Fan with PWM Control

The be quiet! Silent Wings Pro 4 is a 120 mm case fan designed for silent and efficient airflow in PC systems. With PWM control, it adjusts its speed precisely to cooling requirements.

• Extremely quiet operation thanks to high-quality fluid dynamic bearing technology – ideal for noise-sensitive work environments
• PWM control allows demand-based fan speed and reduces power consumption
• At 36.9 dBA, the fan remains pleasantly quiet even under load
• 60 months manufacturer warranty ensures long-term investment security

What makes the Silent Wings Pro 4 stand out

Unlike conventional fans, be quiet! uses a special fluid dynamic bearing construction that combines quiet running and longevity. The fan is optimized for use in silent PCs, workstations, and media servers.

Ideal for...

This fan is particularly suitable for users who want to build a silent PC system – whether for home office, silent gaming rigs, or home servers. It is also well suited for cooling CPU coolers or radiators in water loops.

How to use the Silent Wings Pro 4

Mount the fan using the included screws in a free 120 mm fan slot in the case. Connect the 4-pin connector to a PWM-capable fan header on the motherboard. The speed is automatically regulated by the BIOS or fan control software.