Patent ID: 8717759

Claim:
An apparatus comprising: a housing, the housing including: a signal processing circuit, the signal processing circuit receiving a data signal containing a program stream and outputting the program stream; and an interface that communicatively couples at least one removable device to the signal processing circuit, wherein the apparatus operates in a first mechanical orientation without the at least one removable device coupled to the interface and operates in a second mechanical orientation with the at least one removable device coupled to the interface; and a base, the base including a cooling unit, the cooling unit providing cooling to the signal processing circuit in the housing through a duct in the base and a first duct in the housing that are coupled to direct air flow from the base to the housing in the first mechanical orientation and for providing cooling to the at least one removable device through the duct in the base and a second duct and the first duct in the housing that are coupled to direct air flow from the base to the housing in the second mechanical orientation, wherein the orientation of the housing in the first mechanical orientation is orthogonal to the orientation of the housing in the second mechanical orientation.