The NF-S12A case fan marks the third generation of Noctua's classic S12 series, which has received more than 250 awards and recommendations in the international trade press. The NF-S12A's advanced blade geometry with anti-stall knobs and the new AAO frame (short for Advanced Acoustic Optimisation) achieve up to 8% higher efficiency (feed rate/noise development) compared to its renowned predecessor. The PWM version uses Noctua's specially designed NE-FD1 IC for fully automatic speed control via 4-pin connectors and is supplied with a low-noise adapter that can reduce the maximum speed in PWM mode from 1200 to 900rpm. Its excellent running smoothness, the SSO2 reference class bearing and Noctua's proven premium quality make the NF-S12A an exquisite choice for noise-optimized housing cooling.
Multiple award-winning S12 design
The NF-S12A uses the third evolutionary stage of Noctua's classic straight blade design, which has earned the S12 series countless recommendations from hardware enthusiasts and journalists around the globe. Further optimized for even better airflow/noise efficiency, the NF-S12A is the ideal quiet case fan. Anti Stable Knobs
The Anti-Stall Knobs of the NF-S12A reduce vortex detachment phenomena in situations with medium to high flow resistance and thus extend the so-called stall margin (stall limit). This makes the NF-S12A even more versatile than its predecessor and allows better results on heat sinks and radiators. AAO frame system
Noctua's AAO (Advandced Acoustic Optimisation) frames feature integrated vibration buffers, a stepped inlet design and inner surface microstructures for even better performance/noise efficiency. Stepped inlet design
The stepped inlet area of the stepped inlet design creates more turbulence in the inlet. This facilitates the transition from laminar to turbulent flow, which adheres better to the frame (flow attachment) and thus increases the suction capacity of the fan, especially where the intake area is limited.…more