4220 is a rack server or network switching equipment and other centralized installation of devices that can be routed to the server unified, managed by rack-mounted server, saving space and easy to manage. Cabinet also has the advantages of the apparatus of floor space occupied by the enhanced electromagnetic shielding, mitigation device noise, is reduced. For some high-end cabinets, also has an air filtering precision equipment to improve the quality of the work environment. For all data center 42U rack DellTM PowerEdgeTM 4220 rack enclosure provides simplified installation and storage components, enhanced power management and effective cooling system is suitable for a large number of IT equipment, you can use it to scale the data for all center enterprise-class efficiency. It includes: Distribution: Integrated bracket for vertical power distribution unit (PDU) to provide tool-free installation. Cooling: Front and rear doors have 80% of the perforated area, so that air can flow smoothly. Cable management: Three sizes (standard, wide type and deepening type) are available to complete the appropriate space for every need of wiring. Very robust and secure high - 78.8 inches (1999 mm) wide - 23.94 inches (608 mm) thick - 39.3 inches (1071 mm) TG - 307 pounds (170 kg)