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 2 000 rpm max noise emission 228 db volume flow 789 mh airflow 4644 cfm dimensions wxhxd 92 x 92 x 14 mm width 92 mm height 92 mm depth 25 mm f