140mm fan case fan rotations per minute 1 600 rpm max noise emission 253 db volume flow 1157 mh airflow 681 cfm dimensions wxhxd 140 x 140 x 25 mm width 140 mm height 140 mm depth 25 mm fan bearing ufb bearing operating power input 24 watt mtbf 150 000 hours port 4 pin nominal current 02 a leaf colour white frame colour black