The Dark Rock 4 offers an extremely high cooling capacity of 200W TDP and is almost inaudibly quiet in operation. Perfect for demanding systems and overclocked CPUs. The Silent Wings 135mm PWM fan is equipped with nine airflow-optimised fan blades, a smooth-running 6-pole motor and a durable Fluid Dynamic bearing. Vibration-isolating elements attached to the heat sink enable decoupled fan mounting. Uncompromisingly quiet cooling of superlatives for demanding, overclocked systems. The Dark Rock 4 achieves a performance of an impressive 200W TDP and ensures low system temperatures even when the CPU is running at full speed.