Tripp Lite's SmartRack 24U Mid-Depth Rack Enclosure Cabinet is packed with features designed to simplify rack equipment installations and rack equipment maintenance: top and bottom cable routing ports, perforated front and rear doors and solid side panels promote efficient airflow, adjustable vertical mounting rails and more. And as part of the SmartRack family, the SR24UB is compatible with Tripp Lite's extensive range of rackmount accessories, enabling you to customize your solution to meet any requirement. The SR24UB ships fully assembled for quick installation and comes with a 5-year warranty.The SR24UB 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 inches, ideal for standard server installation. Adjustment is quick and convenient: simply unscrew the rails, slide them to the desired depth and restore the screws. The rails feature square mounting holes and are capable of supporting up to 1,000 lbs of equipment with included installation hardware. Each rack space within the enclosure is numbered for easy reference.With a locking, reversible front door and locking, removable side panels, the SR24UB provides safe, secure installation for all equipment. This prevents unauthorized access to installed equipment while making it easy for authorized personnel to perform inspections, maintenance and equipment replacement. The enclosure meets all requirements toward PCI DSS compliance.The top and bottom panels of the SR24UB are furnished with vents designed to help remove warm air from the enclosure and draw in cool air by convection. They also support installation of standard user-supplied case fans(Tripp Lite SRFANWM). The top and bottom panels are also provided with ports for cable routing.To simplify deployment, the SR24UB comes with an accessory caster kit consisting of 4 casters and all required installation hardware. With the casters installed, the SR24UB can easily be maneuvered into the desired location, and then secured in place by adjusting the unit's levelers. Note: the casters are intended for minor position adjustments within the final installation area only and are not designed for moving the enclosure over long distances.