This is the "Next Generation" Rack you have been wanting! Choose a BGR enclosure for the most space efficiency and strength available, plus the latest options for installation flexibility. This stand-alone version includes fixed vented side panels.BGR series rack enclosures have higher weight capacities, provide more usable rackspace, and incorporate more functionality than any other rack system on the market Our revolutionary patent-pending Lever Lock™ system gives you tool free installation of cable management accessories. New options include brush grommet rear doors and problem-solving extender bays. Breakthrough design provides high strength without extra weight Fixed solid sides for security and to control airflow Accepts Lever Lock™ system tool free cable management accessories Accepts extender bay to add 3" of useable depth to the front or rear at any time Accepts brush grommet rear door kit for a large cable passage without fishing Wide open top and bottom offer many cabling and cooling options Standard front and rear adjustable 10-32 threaded rackrail with numbered spaces