CPI’s industry leading two-post relay racks and four-post open racks provide unsurpassed strength, stability and durability for supporting rack-mount patch panels, high-density blocks, cabling and other equipment.CPI Rack Systems include the following benefits:High-quality construction and designFixed mounting rails, most with RMU markings, ideal for support of patch panels, termination blocks and other equipmentEIA-310-D-Standard hole patternSmall base to save floor spaceUnrestricted airflow for ventilationEasy access to cables for moves, adds and changesLarge variety of styles and sizes for various configurations