12U extra depth rack enclosure cabinet is designed with top and bottom cable routing ports, perforated door and side panels to promote efficient airflow, adjustable vertical mounting rails. It is compatible with all standard 19-inch rack equipment and features front and rear pairs of vertical rails with square mounting holes. The rails are adjustable in quarter-inch increments to accommodate equipment depths from 3 to 32.5-inch, ideal for standard server installation. The rails feature square mounting holes and are capable of supporting up to 250lbs of equipment with included installation hardware. It provides safe, secure installation for all equipment.