SKB R6U Roto Rack

This rack is the real deal and offers military-grade protection for your pricey gear. It is bulky and while the handles are sturdy, it is not easy to move around, especially if loaded with units. So be aware: THIS THING IS HEAVY!
But, that's the price to pay to give you what seems a virtually non-destructable frame. This rack may be a bit overkill for my purposes ( I do not tour around the country), but it is nice to have a solid rack to transport my pre's and comp's between locations. I only bought one so far, so I did not try out the "stacking feature" (interlocking pattern on top and bottom of the unit) but I am sure you could stack a quite a few of them! So I would say this is a great product and definitely worthy investment for your studio.