The Dell™ PowerEdge™ rack enclosures are designed to hold and protect server, network and data storage equipment, and are delivered with Enterprise service, support and reliability. The Dell rack enclosures are offered in three height options: 24U (2420), 42U (4220), and 48U (4820). Dell racks are designed for use in almost any environment, such as an Enterprise data center, a high-performance computing center, a remote office, a wiring closet, or a factory floor.