Abstract: The invention relates to systems and processes for securably retaining a device within an equipment rack. A device carrier is configured to retain the device having a maximum height, such that a combined height of the device carrier and the device retained therein is not substantially greater than the maximum height of the device. A rack-mountable tray includes an aperture to accommodate the device carrier with a device retained therein. The device carrier is securable to the rack-mountable tray, such that the device retained therein can be securably retained to the equipment rack by a combination of the device carrier and the rack-mountable tray. Beneficially, a combined height of the device, the device carrier and the rack-mountable tray is not substantially greater than the maximum height of the device.