BE QUIET! DARK ROCK 4 SILENT HIGH-END CPU AIR COOLING FAN (BQ-BK021)

QUIET PERFORMANCE: Features a virtually inaudible Silent Wings 135mm PWM fan, producing only 21.4dB(A) at peak speed. EFFICIENT COOLING: Employs 6

be quiet! Dark Rock 4 200W TDP CPU Cooler| Intel 1700 1200 2066 1150 1151 1155 2011 Square ILM | AMD4 AMD5 | Black | BK021

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be quiet! Dark Rock 4 CPU Air Cooler

Built for overclocked systems and demanding workstations, the Dark Rock 4 Air Cooler from be quiet! features six 6mm copper heat pipes, a 135mm Silent

be quiet! Dark Rock 4 Air Cooler

BK021 Dark Rock 4 CPU cooler with a virtually inaudible Silent Wings 135mm fan and extremely high cooling performance (200W TDP) and with six advanced technology 6mm copper heat pipes. The Silent Wings 135mm PWM fan features nine airflow-optimized fan blades, a six-pole motor for less vibration and a durable fluid-dynamic bearing. Decoupled fan mounting with vibration-isolating elements on the heat sink.