120mm fan case fan rotations per minute 1 600 rpm max noise emission 19 db volume flow 12912 mh airflow 76 cfm dimensions wxhxd 120 x 120 x 25 mm width 120 mm height 120 mm depth 25 mm fan bearing twister bearing series enermax everest advance mtbf 100 000 hours port 3 pin weight 110 g