Data storage enclosure with acoustic baffle

An apparatus comprising an enclosure housing a data storage device separated from a cooling feature by a plenum region of the enclosure, first and second acoustic baffles each positioned in and separated from each other in the plenum region by an air deflector configured to funnel air to less than an entire width of the second acoustic baffle, each acoustic baffle configured to continuously span a width of the plenum region so that air passes through apertures defined by protrusions of material, the first acoustic baffle having a different aperture configuration than the second acoustic baffle, the first acoustic baffle comprising a first group of apertures angled to divert airflow toward a first direction and a second group of apertures angled to divert airflow toward a second direction, opposite the first direction, the first and second groups of apertures each positioned in, and extending through, a single body of material, the first acoustic baffle separating a first sound pressure region proximal the cooling feature from a second sound pressure region, the second acoustic baffle separating the second sound pressure region from a third sound pressure region proximal the data storage device.