Technical Spec: Heatsink Specifications: Dimension: Length 155mm x Width 53mm x Height 170mm Weight: 771g (including fan & pads. excluding mounting brackets) Heatpipe: 6mm heatpipe*6 units Copper Base: C1100 Pure copper nickel plated with mirror shine Fan Specification: Dimension: L160mm x H140mm x W26.5mm Weight: 140g Fan speed: 900~1300RPM (PWM controlled) Fan noise: 19~21d BA Airflow: 56~73CFM Connector: 4 Pin (PWM Fan connector)