The NF-S12A housing 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. Thanks to the advanced blade geometry with anti-stall knobs and the new AAO frame (short for Advanced Acoustic Optimization), the NF-S12A achieves up to 8% higher efficiency (output/noise development) compared to its renowned predecessor. The ULN version with its super-slow speed options (800/600rpm) enables almost noiseless operation and is therefore perfectly suitable for ultra-low noise applications and particularly noise-sensitive users. Its excellent smoothness, the SSO2 reference class bearing and Noctua's proven premium quality make the NF-S12A a choice for noise-optimized housing cooling.Award-winning S12 designThe NF-S12A uses the third evolution stage of Noctua's classic straight blade design, which has registered countless recommendations from hardware enthusiasts and journalists around the world to t