Long Service Life Featuring a Fluid Dynamic Bearing that comes with an oil capsule that prevents lubricant leakage, this allows the bearing inside the F9 fan to be as quiet as a sleeve bearing but with a significantly longer service life. Innovative Design for Efficient Ventilation The innovative design of the fan blades improves the air flow and facilitates highly efficient ventilation. The impeller was designed with a focus on minimising the noise level yet delivering the desired airflow and pressure. Less Noise At Higher Airflow The Fan motor has been developed with using German know how, boasting a new alloy & lubricant combination that results in reduced friction and noise to give you the silent performance you deserve. Features • Virtually Silent • Extremely quiet with low noise impeller • New alloy/lubricant combination reduces friction • Fluid dynamic bearing extends service life Pack Information Edition    F9 Silent Pack Type    Single (1) Fan Standalone Pack Includes    1 x 92mm Fan/s Individual Fan Specifications Fan Diameter    92mm Fan Depth    25 mm Fan Speed    1000 rpm Fan Blades    9 PWM    No Fan Specialization    Inaudible Airflow Airflow    21.2 CFM Air Pressure      Sound Level (dBA)      Sound Level (Sone)    0.08 Sone Motor Type      Bearing Type    Fluid Dynamic Bearing Manual Speed Controller    No Material      Fan Colour    Black LED    No LED Colour      MTBF      Fan Fixing    Screw Fixing Cable length      Connectors    1 x 3-pin