nVent Hoffman - Hoffman E4DR19FM45U 4-Post Open Frame Rack, Black, Aluminum

4-Post Open Frame Racks combine the mounting security of a cabinet with the accessibility of a rack. Used in communication data center and telecommunication room applications, these adjustable-depth racks support deeper, heavier network equipment and can be ganged with standard 2-post or other 4-post racks to expand existing systems. Features: Depth adjustable 450 mm to 1050 mm (17.7 inch to 41.3 inch) in 25-mm (.98-inch) increments; EIA universal 5/8 - 5/8 - 1/2 inch spaced 12-24 tapped holes or .375-inch square holes fit 19-inch rack equipment; Compatible with 19-in. rack accessories; Available with nominal frame height of 6, 7 and 8 feet; RU markings on both front and back of tapped-hole uprights make it easier to mount equipment; Floor mounting holes predrilled at .750-inch diameter; 12-24 rack mounting screws (pkg. of 20) included with tapped-hole model; For square hole model, order screws and cage nuts separately; Can be ganged with both 2- and 4-Post Open Frame racks; Includes complete assembly instructions; Shipped unassembled for convenient transport to job site; Uprights on the tapped-hole model are made of lightweight extruded aluminum (6063-T6 alloy) and include RU markings on both front and back of uprights; Uprights on the square-hole model are made from 12 gauge steel; Top and bottom angles made of extruded aluminum (6063-T6 alloy)