MI-7940 is compatible with all brands of computer and A/V equipment, and has 4 shelves that can support up to a combined 132 lbs. Top shelf easily adjusts from a minimum of 37' up to 54' This mobile standing desk is highly maneuverable, with easy-roll, locking casters and 28' x 27.5' dimensions that allow it to move and fit in tight spaces Ideal for offices, medical facilities, showrooms, classrooms, and more