Noctua NF-A6x25 PWM 60mm Low Noise Fan

Noctua

Noctua NF-A6x25 PWM 60mm Low Noise Fan\n\nFeaturing advanced aerodynamic design measures such as Flow Acceleration Channels and Noctua's AAO frame; the NF-A6x25 is a highly optimised; premium quality quiet fan in 60x25mm size. The PWM version sports Noctua's 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 3000 to 2300 RPM. Its superb running smoothness; SSO2 bearing and Noctua\u2019s trusted premium quality make it an elite choice for the highest demands.\n\nFlow Acceleration Channels The NF-A6x25 impeller features suction side Flow Acceleration Channels. By speeding up the airflow at the crucial outer blade regions; this measure reduces suction side flow separation and thus leads to better efficiency and lower vortex noise.\nReduced Motor Hub Size Thanks to its streamlined; compact motor design; the NF-A6x25's motor hub is smaller than with conventional 6cm fans. ;