Optional Cable Management Kits are available with two sizes of D-rings and fastening straps. Meets EIA standard for 19" racks. The optional Vented Quick-Release Shelf is independent of the mounting holes. Install it anywhere - no tools are required! Flexible power options. You can mount power strips directly to the back of the rack or to the optional Cable Channel. The open design enables airflow to the equipment. Features 45U in an 84"-high frame. Also available in 24" or 30" depths. Stability and versatility.The Action Organizer provides solid, four-post stability for your equipment. Plus, built-in wiring troughs make cable management easy! Cabling to and from equipment and patch panels can be secured neatly in the rack''s rails - away from power cords and the adjacent racks'' cables. Optional joining kits, shelves, and cable management bring even more versatility to this adaptable rack.