be quiet! Dark Rock Pro 6 CPU Air Cooler Dual Silent Wings PWM Fans 7 Heat Pipes Semi-Passive Quiet Mode & Performance Switch .

Semi-passive quiet mode with full fan stop for completely silent operation Hardware switch to toggle between performance and quiet modes 7 optimized high-performance heat pipes for immensely high cooling power Optimized heat sink for more cooling power 2 virtually inaudible Silent Wings PWM fans for perfect airflow Height-adjustable front fan with rail system and heat sink cut-outs for high RAM and VRM cooler compatibility Top cover with brushed finish aluminum badge Middle fan attached to the top cover for convenient installation Simple mounting systems for fans and heat sink Ceramic-particle black coating and side cover create the signature elegant be quiet! look