his new fan from Thermaltake flows up to 75.7CFM of air. Thankfully, thermaltake has given us control over the fan speed. You can set it to full speed, allow the fan to adjust its speed based on the supplied temperature probe, or use a supplied variable resistor to manually set the speed anywhere from 1300 to 4800 RPM for 20.55 to 75.7 CFM at 17 to 48dBA. The high airlfow capability combined with versatile speed control make this fan perfect for almost any application from super quiet case fan to ultra high performance CPU cooling. Use it on your case or any 80mm CPU cooler and dial in just the right amount of airflow to balance noise and performance.