120mm fan case fan rotations per minute 1 500 rpm max noise emission 1 676 db volume flow 12105 mh airflow 7125 cfm dimensions wxhxd 120 x 120 x 25 mm width 120 mm height 120 mm depth 25 mm fan bearing twister bearing operating power input 48 watt series enermax tb silence mtbf 100 000 hours leaf colour transparent frame colour black