The NF-A9 is a highly optimized silent 92mm fan in premium quality. Thanks to Noctuas AAO (Advanced Acoustic Optimization) frame system as well as advanced aerodynamic design measures such as Flow Acceleration Channels, the NF-A9 offers an even better silent cooling performance compared to the award-winning NF-B9. The FLX version offers three speed settings (1600/1250/1050rpm) via the supplied low-noise adapters, thus providing full flexibility between maximum flow rate and almost silent operation. Its superb smoothness, the SSO2 reference class bearing and Noctua's proven premium quality make the NF-A9 FLX a top-of-the-line solution for the highest demands.
Successor to the multiple Test winner NF-B9
Noctuas NF-B9 has become a standard solution for PC enthusiasts who require 92mm premium quality fans. By far-reaching aerodynamic optimizations, the NF-A9 achieves even higher static pressure compared to its well-known predecessor, as well as a further improved ratio of flow rate and noise emission.
Flow Acceleration Channels
The impeller of the NF-A9 is equipped with so-called flow acceleration channels at the suction side. The acceleration of the air flow in the critical outer regions of the fan blades reduces the suction-side vortex-ablation, resulting in higher efficiency and lower turbulence-related noise emission.
Integrated Anti-Vibration Pads
The anti-vibration pads, made from extra-soft silicone, reduce the transmission of minimal vibrations and are compatible with all standard screws as well as standard mounting systems or fan clips used in CPU coolers.
SSO2 bearings
The NF-A9 is equipped with the further optimized second generation of Noctua's proven SSO storage system. At SSO2, the rear magnet sits closer to the fan axis, resulting in even better stabilization, resulting in further improved precision and durability.
Smooth Commutation Drive 2
The latest, further developed version of Noctua's SCD drive system guarantees outstanding smoothness by eliminating torque fluctuations and switching noises. This makes the NF-A8 surprisingly quiet even from close proximity.
3 speed options for maximum flexibility
The NF-A8 FLX (flexibility) offers 2000, 1650 and 1200rpm settings via the supplied low-noise and ultra-low-noise adapters, allowing fine tuning for maximum flow rate or maximum smoothness.
Comprehensive Connectivity Options
While the 20cm short primary cable helps to avoid cable clutter in typical applications, the included 30cm extension provides extra range for all cases. Both cables are fully sheathed and a 4-pin Y-cable allows a second PWM fan to be controlled at the same connection.
