Patent ID: 8854814

Claim:
An electronic system comprising: a first region adjacent to a first side, the first region comprising first sections for accepting first modules positioned in a first direction; a second region adjacent to a second side, the second side being opposite the first side, the second region comprising second sections for accepting second modules positioned in a second direction orthogonal to the first direction; and a hybrid air flow path comprising: a first air flow path having a first entrance in the first side, a first portion beneath the first region but not entering the first region, a second portion between the second sections, and a first exit either through openings on top parts of faceplates of the second modules or through fans in the second side; and a second air flow path having a second entrance at the first side through openings on faceplates of the first modules in the first region, a third portion between the first sections, aligned and suitable openings on a backplane, and a second exit in the second side.