Computer cabinet and arrangement of a computer cabinet

The invention relates to a computer cupboard in which several computer units (3) are housed one above the other. The computer units (3) comprise a front face (5) with holes (4), by means of which cooling air is drawn in and expelled through the rear face or the lateral rearward regions. The computer cupboard is provided with a front wall (6), a rear wall (7) and two side walls (8 and 9). Several solutions are disclosed to achieve an effective cooling of such a compute unit (3).