Heat Sink Dimensions:90 x 63.5 x 136mm (3.5 x 2.5 x 5.4 inch); Heat Sink Material:4 Heat Pipes / Direct Contact / Aluminum Fins; Heat Pipes Dimensions:ø6mm; Fan Dimensions:92 x 92 x 25mm (3.6 x 3.6 x 1.0 inch); Fan Speed:600 - 2,000 RPM (PWM) ± 10%; Fan Airflow:34.1 CFM ± 10%; Fan Air Pressure:1.79mm H2O ± 10%; Fan MTTF:40,000 hours; LED Color:White; Fan Noise Level:29.4 dBA