Noctua 120mm 1200RPM PWM Fan (NF-S12A-PWM)

The NF-S12A marks the third generation of Noctuas signature S12 series quiet case fans, which have received more than 250 awards and recommendations from the international press. Featuring a further refined blade design with Anti-Stall Knobs that works in tandem with the new AAO (Advanced Acoustic Optimisation) frame, the NF-S12A improves the airflow/noise efficiency of its renowned predecessor by up to 8%. The PWM version sports Noctuas custom designed NE-FD1 IC for fully automatic speed control via 4-pin fan headers and comes with a Low-Noise-Adaptor to reduce the maximum speed during PWM control from 1200 to 900rpm. Its superb running smoothness, SSO2 bearing and Noctuas trusted premium quality make it an elite choice for quiet case cooling.Award-winning S12 design The NF-S12A features the third evolution of Noctuas classic Straight Blade Design that has earned its S12 series countless recommendations from hardware journalists and enthusiasts around the world. Further optimised for even better airflow/noise efficiency, it makes the NF-S12A an ideal quiet case fan.Anti-Stall Knobs The NF-S12As Anti-Stall Knobs reduce flow separation phenomena in medium to high impedance situations and thereby increase the fans stall margin. This means that the NF-S12A is even more versatile than its renowned predecessor and can achieve better performance on heatsinks and radiators.AAO Frame Noctuas AAO (Advanced Acoustic Optimisation) frames feature integrated anti-vibration pads as well as Noctuas proprietary Stepped Inlet Design and Inner Surface Microstructures, both of which further refine the fans performance/noise efficiency.Stepped Inlet Design Noctuas 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 ploughing 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.Integrated Anti-Vibration Pads Integrated Anti-Vibration Pads made from extra-soft silicone minimise the transmission of minute vibrations while maintaining full compatibility with all standard screws and other mounting systems.Custom designed PWM IC with SCD Supporting fully automatic PWM speed control, the NF-S12A PWM uses Noctuas novel, 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.Low-Noise Adaptor The NF-S12A PWM is supplied with a Low-Noise Adaptor (L.N.A.) that reduces the maximum fan speed from 1200 to 900rpm. The L.N.A can be used either to run the fan at a fixed speed of 900rpm or to cap the maximum speed when using automatic PWM control.Extensive Cabling Options The fans short 20cm primary cable minimises cable clutter in typical applications while the supplied 30cm extension provides extended reach when necessary. Both cables are fully sleeved and a 4-pin y-cable allows to connect a second fan to the same PWM fan header for automatic control.SSO2 Bearing The NF-S12A features the further optimised second generation of Noctuas renowned, time-tested SSO bearing. With SSO2, the rear magnet is placed closer to the axis to provide even better stabilisation, precision and durability.Metal bearing shell In order to guarantee the highest possible degree of manufacturing precision, minimum tolerance and excellent long-term stability, the NF-S12A sports a CNC milled bearing shell made entirely from brass.SPECIFICATIONS:Size120x120x25 mmConnector4-pin PWMBearingSSO2Blade GeometryS-Series with Anti-Stall KnobsFrame TechnologyAAO (Advanced Acoustic Optimisation)Rotational Speed (+/- 10%)1200 RPMRotational Speed with L.N.A. (+/- 10%)900 RPMMin. Rotational Speed (PWM, +/-20%)300 RPMAirflow107,5 m/hAirflow with L.N.A.83,2 m/hAcoustical Noise17,8 dB(A)Acoustical Noise with L.N.A.10,7 dB(A)Acoustical Noise with U.L.N.A.7,4 dB(A)Static Pressure1,19 mm H2OStatic Pressure with L.N.A.0,73 mm H2OMax. Input Power1,44 WMax. Input Current0,12 AVoltage12 VMTBF> 150.000 hScope of DeliveryLow-Noise Adaptor (L.N.A.)4-Pin Y-Cable30cm Extension Cable4 Vibration-Compensators4 Fan Screws