Abstract: A mass storage devices package includes a structure comprising a stack of two or more mass storage devices of same dimensions, each having a form factor having two opposite main surfaces. The mass storage devices are superimposed in a stacking direction perpendicular to their main surfaces. The mass storage devices package further includes a controller board mounted on top of the stack, aligned therewith, the controller board including connectors connecting to the mass storage devices of the stack so as to control the mass storage devices. The controller board has a form factor having two opposite main surfaces, the latter vis-à-vis main surfaces of the more mass storage devices of the stack, wherein a maximal dimension of any of the main surfaces of the controller board is less than or equal to a maximal dimension of the structure, in any direction perpendicular to the stacking direction.