Noctua Nf-A4x20 Flx

The NF-A4x20 is a fan that utilizes cutting-edge aerodynamic design features such as Flow Acceleration Channels and Noctua's AAO frame system. The FLX version offers three speed settings (5000/4400/3700 rpm) through the included low-noise adapters, providing full flexibility between maximum airflow and near-silent operation. Its exceptional smoothness, the SSO2 reference-class bearing, and Noctua's proven premium quality make the NF-A4x20 an exquisite choice for the highest demands.