- Anti-stall knobs
- AAO frame
- Stepped inlet design
- Inner surface microstructures
- Integrated anti-vibration
- PWM smooth commutation drive 2
- SSO2 bearing
- Metal bearing shell
Featuring a further refined blade design with anti-stall knobs that works in tandem with the AAO (Advanced Acoustic Optimization) frame, the NF-S12A improves the airflow with noise efficiency of its renowned predecessor by up to 8%. The FLX version provides 1200/900/700 rpm speed settings via the supplied low-noise adaptors in order to give you full flexibility in fine-tuning the fan for maximum ventilation performance or near-silent operation. Its superb running smoothness, SSO2 bearing and Noctua's trusted premium quality make it an elite choice for quiet case cooling.