This beautifully simple four-shelf unit includes three fully adjustable shelves. The heavy duty bracket that accompanies one of the adjustable shelves will mechanically isolate components up to 250 lbs. This unit also includes a removable black rear panel that has been sized to allow cables to pass over and/or underneath it. Shown: maple w/ aluminum hardware, maple side panels and perforated steel door (frosted glass is an option). Call for other options.