80mm fan case fan rotations per minute 1 600 rpm max noise emission 15 db volume flow 4747 mh airflow 2794 cfm dimensions wxhxd 82 x 82 x 25 mm width 82 mm height 82 mm depth 25 mm fan bearing twister bearing operating power input 18 watt series enermax tb silence mtbf 160 000 hours port 3 pin nominal current 015 a leaf colour transparent frame colour black