92mm fan case fan blade geometry a series with flow acceleration channels frame technology aao advanced acoustic optimisation static pressure 2 28 mm h2o delivery low noise adaptor lna 4 pin y cable 30cm extension cable 4 vibration compensators 4 fan screws warranty 6 years rotations per minute 1 600 rpm max noise emission 171 db volume flow 646 mh airflow 3802 cfm dimensions wxhxd 92 x 92 x 25 mm width 92 mm height 92 mm depth 25 mm f