The Fractal Design Dynamic X2 series are true all-purpose fans, offering excellent airflow and outstanding 100,000-hour life expectancy thanks to the new LLS (Long Life Sleeve) bearing. Added PWM support offers precise fan control via a wide speed adjustment range allowing users to select their ideal mix of silent operation and maximum airflow. The customized design of the Dynamic X2 results in a beautiful fan that helps to keep your system cool, yet quiet. Designed together with Fractal Design's high-end Venturi Series, the Dynamic X2 incorporates aerodynamic elements of airplane wing designs for significant noise reduction. White.