SilenX IXP-54-14 Processor Fan

80mm, 1700 RPM, 14dB, 32cfm The former gold standard in airflow to noise ratio, iXtrema Pro Quiet Fans are the only fans in the industry to be designed with silence and optimal airflow in mind. Smaller, domed motor hub, larger, more dramatic fan blade sweep area, they offer unrivaled performance along with a noise characteristic that makes it a favorite among professionals. There might be fans that offer more airflow or lower noise levels, but when it comes to a balance between the two, these fans can't be beat, especially with fluid dynamic bearings for ultra long life and reduced vibration.