The unique dual fan cooling solution maintains consistent air flow across the cooling fins. Included is a dual plug cable adapter which means that one motherboard header can run both fans. Five copper heatpipes extend from the mirror finished copper base to maximize the heat transfer to the wide surface aluminum fins. The Cooler Master Hyper N520 is a powerful cooler designed for powerful processors. Universal Design Intel LGA 1366 / LGA 775 AMD 754 / 939 / 940 / AM2 / AM2+) Optimum Air Flow Distinct appearance with dual fan bracket Unique dual fan cooling design ensures cool air accelerates straight through the heatsink Superior Cooling Performance Mirror finished copper base guarantees perfect contactbetween CPU and cooler 5 heat pipes optimize heat transfer. Pure Copper Base & Heat Pipes Pure Copper Base provides excellent cooling performance with 5 Heat Pipes to maximize heat transfer Aluminum Fins, Dual Fan & Unique Adapter Dual Fans for air flow through heatsink with Wide Surface Aluminum Fin Design to improve heat dissipation. Comes with a 2 to 1 Plug Adapter for easy installation Specifications Model: RR-920-N520-GP Dimensions: 122.35 x 102.5 x 141 mm Weight: 1.52 lbs Heat Sink Dimensions: 115 x 62.3 x 141 mm Heat Sink Materials: Copper Base, Aluminum Fins and 5 heatpipes Heat Pipes Diameter: 6 mm Fan Dimensions: 92 x 92 x 25 mm Fan Speeds: 1800 RPM Fan Airflow: 43.8 CFM (Max.) Fan Air Pressure: 3.24 mmH2O (Max.) Bearing Type: Sleeve Fan Life Expectancy: 70,000 hours Fan Noise Level: 19 dBA Connector: 3 Pin