Dynatron A13 60mm 2 Ball CPU Cooler

At Duty Cycle 20%: 1600 RPM At Duty Cycle 50%: 4000 RPM At Duty Cycle 100%: 8000 RPM At Duty Cycle 20%: 8.85 CFM At Duty Cycle 50%: 21.88 CFM At Duty Cycle 100%: 43.75 CFM Aluminum stacked fin with heatpipes directly contact CPU