80mm fan case fan rotations per minute 2 000 rpm max noise emission 175 db volume flow 54 mh airflow 3178 cfm dimensions wxhxd 80 x 80 x 25 mm width 80 mm height 80 mm depth 25 mm fan bearing nb nanosli operating power input 096 watt series noiseblocker multiframe s mtbf 140 000 hours port 4 pin weight 85 g leaf colour transparent frame colour black