TP-SHELF-02B-23 Fixed Shelf for 4-post Cabinet 19-inch Rack Mountable, 2U (3.5-inch) Height, 23-inch Depth Maximum Bracket Depth 28-inch, supports up to 200 lbs SH4F-TP02-BK-23 Specifications: > Fixed Shelf, Plate Deep 23-inch, Bracket 2U High > Bracket 3.5-inch, Plate Depth 23-inch > Solid Plate > Maximum bracket Depth 28-inch > 200 lbs load capacity