Heatpipe: Ø6 mmx5 pcs, Fan Speed: 500~1850 RPM±10%, Fan Airflow: 68.99 CFM, Fan Air Pressure: 2.19 mmAq, Fan Airflow (with LSP): 52.24 CFM, Fan Air Pressure (with LSP): 1.2 mmAq, Fan Connector: 4-pin PWM, Bearing Type: Fluid Dynamic Bearing, LED Connector: 3-pin(+5V-D-G) and 9-pin USB 2.0, Warranty: 03 Years, R-AK500-WHADMN-G.