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 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.