The BudRack Professional Series Cabinet Rack comes assembled with all of the features that one expects in a high-end 19-inch cabinet rack, and more. Ventilated tempered glass front door, locking rear door, and lockable removable sides provide easy access. Top-mount fan box with two or four fans (depending on cabinet size), offers cool operation. One or two ventilated shelves (depending on cabinet height) are included. Comes with four casters and four levelers (unassembled).