Noctua chromax NF-S12A PWM

Swappable anti-vibration pads

The NF-S12A PWM chromax.black.swap comes with anti-vibration pads. By combining the various colors or leaving off the pads on one side, the fan can be coordinated with most popular build color schemes out of the box.

Anti-Stall Knobs

The NF-S12A's Anti-Stall Knobs reduce flow separation phenomena in medium to high impedance situations and thereby increase the fan's stall margin. This means, that the NF-S12A is even more versatile and can achieve better performance on heatsinks and radiators.

AAO frame

Noctua's AAO (Advanced Acoustic Optimization) frames feature integrated anti-vibration pads as well as Noctua's proprietary Stepped Inlet Design and Inner Surface Microstructures, both of which further refine the fan's performance/noise efficiency.

Stepped Inlet Design

Noctua's Stepped Inlet Design adds turbulence to the influx in order to facilitate the transition from laminar flow to turbulent flow, which reduces tonal intake noise, improves flow attachment and increases suction capacity, especially in space-restricted environments.

Inner Surface Microstructures

With the tips of the fan blades plowing through the boundary layer created by the Inner Surface Microstructures, flow separation from the suction side of the blades is significantly suppressed, which results in reduced blade passing noise and improved airflow and pressure efficiency.

SSO2 bearing

The chromax line fans feature the further optimized Noctua's time-tested SSO bearing. With SSO2, the rear magnet is placed closer to the axis to provide even better stabilization, precision and durability.

Metal bearing shell

In order to guarantee the high degree of manufacturing precision, minimum tolerance and excellent long-term stability, the chromax edition fans sport a CNC milled bearing shell made entirely from brass.

Custom-designed PWM IC with SCD

Supporting fully automatic PWM speed control, the chromax edition fans use Noctua's custom-designed NE-FD1 PWM IC, that integrates Smooth Commutation Drive (SCD) technology. By providing smoother torque impulses, SCD suppresses PWM switching noises and thus makes the fan quieter at low speeds.

• Swappable anti-vibration pads
• Anti-Stall Knobs
• AAO frame
• Stepped Inlet Design
• Inner Surface Microstructures
• SSO2 bearing
• Metal bearing shell
• Custom-designed PWM IC with SCD

MPN: NF-S12A PWM CH.BK.S