https://www.musiciansfriend.com/acc...vD_BwE&kwid=39474984916x42814104161x151905500
"Stackable shallow rack case fits equipment up to 14-1/4"." I just bought the 6 space version, Axe III would have to be 3U, (BTW Musician's Friend was the best deal I could find without going used). It's a nice case, some peeps have complained about it like; the latches being smaller and weaker than that of SKB, (I don't find that to be the case). Or that the handles have come loose, (they must be throwing it on a train). My friend has had an Ultra, an amp, and a power conditioner in the 4U for 10 years with no issues. Hope that helps
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Oh, one last thing: Unlike SKB cases, the Gator has no rubber feet, so it can slide around. I'd recommend getting some stick on rubber feet from Home Depot, there cheep. Pick one and buy extras.