We have the opportunity today to look at the AeroCool S9 Pro Mid Tower Case. This case offers a HUGE 40CM side panel fan, the largest in the world, which kicks out a whopping 250CFM of airflow. For those of you who aren’t familiar with airflow a standard 12CM fan only outputs around 65CFM of airflow. That’s nearly 4x the airflow! This case also offers 9 useable 5.25″ drive bays, 4 of which can be used for 3.5″ devices. Read on more for further information and even for a video of the 40CM fan in action.