The Teranex Mini Rack Shelf is designed for the Teranex Mini Line of Blackmagic Design boxes. This shelf fits a standard 19in rack width. This shelf is a 1U slot design. Works great in a Stage Rack, Audio Cart, or any other rack for AVL gear. The Teranex shelf holds up to 3 Teranex units and comes with blank plates for any slots you are not using.