92mm fan case fan rotations per minute 2 600 rpm max noise emission 27 db volume flow 6658 mh airflow 3919 cfm dimensions wxhxd 95 x 95 x 25 mm width 95 mm height 95 mm depth 25 mm fan bearing z bearing operating power input 288 watt series titan kukri fan mtbf 60 000 hours port 4 pin