be quiet! Dark Rock Pro 4 Air Cooler

Built to provide immense cooling performance for overclocked systems and demanding graphics applications, the Dark Rock Pro 4 Air Cooler from be quiet! features seven 6mm copper heat pipes and 120 and 135mm Silent Wings PWM fans with speeds of 1200 to 1500 rpm. Engineered for quiet operation, the Dark Rock Pro 4 Air Cooler operates at just 12.8, 17.9, or 24.3 dBA of noise under 50, 75, and 100% loads, yet offers a cooling capacity of 250W TDP. This air cooler is compatible with select Intel and AMD sockets.