80mm fan case fan rotations per minute 1 800 rpm max noise emission 18 db volume flow 45 mh airflow 2649 cfm dimensions wxhxd 80 x 80 x 25 mm width 80 mm height 80 mm depth 25 mm fan bearing sleeve bearing operating power input 12 watt series noiseblocker blacksilent port 3 pin leaf colour blue frame colour black