Odyssey sturdy steel rack clamping shelves are available in 2U, 3U, and 4U sizes. These rack mountable shelves feature vertical and horizontal clamping mechanisms designed to hold and secure your non-rack mountable gear. Our Rack Mountable Shelves are just a few of our wide range of quality 19” Rack Mountable Accessories. From slanted horizontal trays that can be mounted on the top angled rails of combo racks to vertical rack mountable pullout trays, panels, and drawers.