This is the "Next Generation" Rack you have been wanting! BGR-SA series racks have higher weight capacities, provide more useable rackspace, and incorporate more functionality than any other rack system on the market. Features the revolutionary patent-pending LeverLock™ system for tool free installation of cable management accessories. New options include brush grommet rear doors and problem-solving extender bays. Choose a BGR enclosure for the highest level of space efficiency and strength available, and to enable the use of the latest options for installation flexibility. This stand-alone version includes fixed vented side panels.