Omnimount Viking Series Standard 19" Rack Enclosure Works With All Standard 19" Rack Accessories System Includes One 30-Space Rack, Four 2U Space Shelves, One 5U Space Shelf, Five 2U Space Vented Blanks & 5 Cable Lacing Bars Total Weight Capacity: 1000 Lbs 2U Shelf Weight Capacity: 50 Lbs 5U Shelf Weight Capacity: 100 Lbs