Tech Specs amp; Customization Chassis Form factors: Tower or 5U rack enclosure Tower configuration: 48.4cm (19.1in) H with system feet x 31.0cm (12.2in) W with system feet opened x 73.0cm (28.7in) D Weight (empty) = 31.7kg (69.7lb) Weight (maximum) = 74.8kg (164.9lb) Rack configuration: 21.9cm (8.6in) H x 48.2cm (19.0in) W x 73.0cm (28.7in) D Weight (empty) = 24.7kg (54.5lb) Weight (maximum) = 68.7kg (151.5lb) Server node options: PowerEdge M630, M640 and M830 server nodes Rack Support ReadyRails™ II sliding rails for 4-post racks with square, round, or threaded holes rp.234.000.000