The classic NF-B9 fan has been immensely popular among international hardware enthusiasts for years and has significantly contributed to Noctua's reputation as a leading manufacturer of noise-optimized premium components. The new redux edition reintroduces this award-winning model in a more affordable, streamlined version that focuses solely on the essentials: the NF-B9 Premium fan. With its renowned ssO bearing and an MTBF rating of over 150,000 hours, the NF-B9 redux is a recognized premium solution that offers proven Noctua quality at an attractive price. The 1600rpm version is ideally suited for efficient case ventilation and other applications where a balanced ratio of cooling performance and quiet operation is required.