The NF-P12 has been specifically developed for applications such as CPU coolers that demand superior pressure and airflow performance. Thanks to psychoacoustic optimizations like the Vortex-Control Notches the new SCD drive system and Noctuas premium-grade SSO-Bearing the NF-P12 achieves exceptional quietness and long-term stability.The pressure-optimized Nine Blade Design of the NF-P12 (P stands for pressure power and performance) has been specifically developed for high-impedance applications such as CPU coolers water-cooling radiators power supplies or cases with restrictive fan grills. It achieves outstanding static pressure and high airflow at very low noise levels. While most conventional 120mm rotors possess seven comparably narrow fan blades the NF-P12‘s Nine-Blade Design uses nine large closely spaced blades with a relatively low angle of attack in order to achieve maximum static pressure and high airflow. As a result the NF-P12 provides no less than 1.68 mm H²O at 1300 rpm which is something that other fans merely achieve at 1600 rpm or more. CPU coolers with tight fin-spacing. Water-cooling radiators with tight fin-spacing. Power supplies. Storage solutions. Cases with very restrictive fan grills and filters. All applications with significant obstruction to airflow.