PC Fan - size: 92 × 25mm, 500 RPM - 2200 RPM, 12 V, maximum noise level of up to 19,9 dB, 4pin PWM, PWM The powerful fan in computer cabinets of the Noctua manufacturer in the NF-A9 PWM uses seven integrated blade rotor blades. Thanks to them, it precisely directs the air outlet and is great for water cooling radiators or large processor tower coolers. The fan is equipped with Noctua PWM control, which ensures automatic speed control with very low power consumption. Improved blade design The Noctua NF-A9 PWM falls into a 92mm category and 7 blades develop a maximum speed of 2000 rpm, using the LNA (Low Noise Adapter) adapter, then the value drops to 1550 revolutions. This achieves a maximum air flow of 78.9 m3 per hour.The Noctua NF-A9 PWM design with Advanced Acoustic Optimization (AAO) design is designed for as low noise as possible. This is why vibration dampening silicone vibration damping anti-vibration mats, a special stage design and a...