The new redux edition NF-R8 80mm fans offer quiet operation, superior airflow and feature an industry grade SSO bearing, an MTBF rating of over 150,000 hours and a 6 year Noctua warranty. The NF-R8 redux are a proven premium choice that provides trusted Noctua quality at an attractive price point. The 1800RPM version is ideal for efficient case ventilation or other applications that demand an even balance of performance and quietness.