Increase mounting depth of standard rack enclosures by eight inches without replacing the enclosure or reinstalling existing equipment. Ideal for hosting colocation and server farm applications that experience rapid growth requiring the installation of deep server chassis that can pack more processing power in each rack enclosure. Height adjustable frame is compatible with 25U 42U and 48U enclosures. Fast easy installation&mdashframe attaches to existing rear hinges. Integration of toolless mounting rails from standard enclosures makes it easy to attach cable management accessories. Top cable access accommodates accessories up to 3U. Component Type: Rack Extension Frame Component Style: Height-Adjustable Unit # (Capacity): N/A Weight Capacity (text): N/A.Unit of Measure : Each