The Pure Wings 2 120mm PWM high-speed fan brings exceptional be quiet! cooling to entry level computing. The extremely high air pressure makes it a perfect choice for powerful water- and air-cooled systems. 9 airflow-optimized fan blades that reduce noise-generating turbulence Long life rifle bearing gives an operating lifetime of 80,000 hours A fan speed of 2,000 rpm for extremely high air pressure Even at maximum speed, operates at only 36.9 dB(A) Product conception, design and quality control in Germany