7 high-performance heat pipes for immensely high cooling power 2 virtually inaudible Silent Wings PWM fans for perfect airflow Front fan with funnel-shaped outlet for optimal air distribution A speed switch allows you to switch between Quiet Mode and Performance Mode anytime Height-adjustable front fan and generous heat sink cut-outs for high RAM and VRM cooler compatibility High-grade top cover with mesh design Middle fan attached to the top cover for convenient installation Special black coating with ceramic particles enables perfect heat transfer and elegant look Compatible with liquid metal thermal grease No Compromise Performance and SilenceDark Rock Pro 5 offers an immense cooling performance and virtually inaudible operation. Excellent for heavily overclocked systems and demanding workstations. Dark Rock Pro 5 aims for users that have highest claims on performance but do not want to dispense on virtually inaudible operation at the same time. Performance Fan's mean time to failur