The RockBoard pedalboard series is based on the innovations of our completely re-designed pedalboard series and incorporates a lot of added features, based on suggestions from musicians all around the world. The ingenious, lightweight, rigid and rugged construction, based on only one sheet of cold-rolled aluminum and U-shaped vertical support braces for additional stability, as well as the innovative slot-based design lets you hide cables easily for a neat and tidy design, all stay the same. Added and improved features include an additional mini board size - the New RockBoard DUO 2.2, an extended slot grid for perfect fit of our new optional QuickMount plates, added mounting positions for the Optional RockBoard The Tray - Universal Power Supply Mounting Solution (QUAD 4.2, CINQUE 5.2, 5.3 and 5.4), second MOD mounting slots for RockBoard CINQUE 5.3 and 5.4, lighter ABS pedalboard cases and improve pedalboard bags.