IN WIN DN140Pro 14cm Black Silent Performance Case Fan (PWM Smart Speed Control, FDB Bearing, Dual-Sided Dynamic Balancing)

Professional aerodynamic blade design optimized for pressure and airflow enhancement.

Precision-engineered blade angles achieve increased static pressure and superior airflow performance.

Extensive testing ensures an excellent PQ curve, delivering high static pressure in mid-range operation.

Unique blade shaping reduces airflow separation and noise, producing a vortex-like rapid airflow.

Upward-curved blade edges create a "smile curve" effect, concentrating airflow and improving directional guidance.

Dual-sided dynamic balancing technology enhances operational stability.

Semi-anechoic chamber tested to ISO 7779 standards with background noise at 17 dB.

Continuous optimization of noise reduction algorithms based on spectral analysis of resonance and airflow noise.

Effective suppression of audio fluctuations and elimination of annoying frequencies at 1 meter distance.

Achieves simultaneous speed increase and noise reduction.

Robust metal frame with magnetic ring and three-phase motor.

Metal magnetic frame combined with Fluid Dynamic Bearing (FDB) and copper base for durability and precision.