The classic NF-B9 is a long-standing favourite among enthusiast users around the world and helped to found Noctua’s reputation as a top-tier manufacturer of premium quality quiet cooling components. The new redux edition reissues this award-winning model in a streamlined, accessibly priced package that has been reduced to the essential core: the NF-B9 premium fan. Its industry grade SSO bearing, over 150.000 hours MTBF rating and full 6 years manufacturer’s warranty make the NF-B9 redux a proven premium choice that provides trusted Noctua quality at an attractive price point. The 1600rpm version is ideal for efficient case ventilation or other applications that demand an even balance of performance and quietness.\n\nProven NF-B9 design\nTens of thousands of quiet cooling enthusiasts around the globe swear by Noctua’s classic NF-B9. Thanks to its impressive quietness, excellent performance and impeccable quality, the NF-B9 has become an established reference for quiet 92mm fans.\n\nStreamlined redux edition\nThe redux product line reissues some of Noctua’s most popular, award-winning models by presenting them in streamlined, accessibly priced packages. All redux edition products are industry proven, time-tested models that helped to found Noctua’s reputation as a first-tier supplier of premium grade low noise cooling equipment.\n\nVortex-Control Notches\nNoctua’s signature Vortex-Control Notches split up trailing edge vortices and thus spread the fan’s noise emission over a wider range of frequencies. This measure makes the fan sound more pleasant to the human ear.\n\nBevelled Blade Tips\nReducing critical rotor stator interaction, Bevelled Blade Tips permit to combine extended leading edges and a higher blade surface area with quieter operation and thus form a cornerstone of the fan’s outstanding efficiency.\n\nSmooth Commutation Drive 2\nThe latest version of Noctua’s advanced Smooth Commutation Drive system ensures superb running smoothness by eliminating torque variations and switching noises. This makes the fan remarkably quiet even at very close distance.\n\nSSO-Bearing\nCombining the proven concept of hydrodynamic bearings with an additional magnet that supports the self-stabilisation of the rotor axis, Noctua’s time-tested SSO-Bearing technology has become synonymous with supremely quiet operation and exceptional long-term stability.\n\nOptional accessories\nUsers can choose from Noctua’s wide range of optional accessories such as anti-vibration mounts, Low-Noise-Adaptors, y-cables, 3:4 pin adaptors or extension cables to upgrade redux edition fans according to their individual needs.\n\n6 years manufacturer’s warranty\nNoctua fans are renowned for their impeccable quality and outstanding longevity. Like all Noctua fans, the redux edition models feature an MTBF rating of more than 150.000 hours and come with a full 6 years manufacturer’s warranty.