SILENT WINGS 3 120mm PWM high-speed NO COMPROMISE SILENCE AND PERFORMANCE be quiet! Silent Wings 3 120mm PWM high-speed stands for state-of-the-art technology and virtually inaudible operation. The extremely high air pressure produced makes it a perfect choice for powerful water- and air-cooled systems. Great performance-to-noise ratio with 28.6dB(A) at
SHADOW WINGS 2 120mm PWM WORLD-CLASS QUIET AND SOLID COOLING be quiet! Shadow Wings 2 120mm PWM offers whisper-quiet operation and reliable cooling at low revolutions per minute. Key features include: Low-noise operation of up to 15.9dB(A) Airflow-optimized fan blades Anti-vibration mounting system prevents transmission of vibrations Rubberized fan frame