Fractal Design Dynamic GP-14 Computer Fan - Silent Fan - High Airflow 140x

Hydraulic bearings: cost-efficient compromise between a standard Sleeve bearing and a true FDB Bearing
Counter-balancing magnet: reduces the axial tension on the bearing, further protecting the longevity of the bearing
Optimized fan geometry: creating a good balance between static pressure and maximum airflow, resulting in good performance in all usage scenarios
Aerodynamically shaped thin stator struts (including wire strut), mimicking the design commonly found on airplane wings: delivering correct angles allowing for air to easily pass through reducing noise and unwanted turbulence.
Stator struts are angled perpendicular to the blades: reduces noise commonly emitted when the blades pass the struts. in effect, minimal noise that may be emitted will be constant and therefore almost inaudible
Trip Wire technology: commonly found in airplane wing designs, offering a micro-turbulent layer that helps to combat the elements that negatively affect performance. The presence of the trip Wire overall provides a more efficient and quiet fan environment