"The holes for the 4 fans are immediately visible. I think that the configuration of small holes could impede airflow and this is used on front and back. I was surprised though when I placed the fans in and felt the amount of air coming in. Even with the restriction there is more than sufficient air intake when the 4 intake fans in front and intake fan on the door are on. With only two exhaust fans and the power supply
exhaust I was a little worried about positive pressure build up until I notice the rows of ventilation holes at the top of the case. Any positive pressure would quickly be vented there. Nice touch."

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