be quiet BK021 Cooling Fan

be quiet BK021 Cooling Fan

ANTPOS: Virtually inaudible Silent Wings 135mm PWM fan. Achieves only 21.4dB(A) at maximum fan speed. Six high-performance copper heat pipes. Airflow-optimized, wave-contoured cooling fins. Easily installable black installation kit can be mounted from above. Supports an additional 120mm fan.

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