Patent ID: 7652891

Claim:
An airflow control system comprising: a chassis comprising an air inlet and an air exhaust; a circuit board disposed within said chassis, said circuit board comprising a plurality of card slots configured for electrically coupling a plurality of cards to said circuit board; and a dummy card configured to be coupled to one of said card slots of said circuit board, said dummy card comprising a baffle assembly, said dummy card is configured to be coupled to said chassis, and said baffle assembly is disposed between said air inlet and said air exhaust and comprises a plurality of airflow zones, each zone comprising a plurality of baffles, each of said plurality of baffles within each zone configured to have a different airflow resistance and configurable to provide a different airflow across components corresponding to each zone, the plurality of baffles configured to be selectively deployed, independent of one another, so as to achieve a desired airflow resistance between said air inlet and said air exhaust in said chassis.