Contents: 12U Open frame server rack x1, heavy duty casters x4, cable management hooks x8, M6 screws & cage nuts x24 Dimensions: 29.3 in H x 20.7 in W x (22.7 - 40.7) in D Weight capacity:1323 lbs; constructed from heavy duty cold rolled steel with a durable black electro-static powder coated finish Open frame design offers access to your equipment for cable management and servicing EIA/ECA-310 compatible; supports standard 19 rack equipment like servers, patch panels, switches, UPSs, and other networking or AV equipment