I believe that this is known as Rev. 4 of the Dreamcast Dev.Kits. It is the hardware (computer tower thing with one cord that I don't know what it does). I have hooked it up and turned it on, and it boots but I don't know what to do with it. It has all the Katana hardware inside. I paid $150 for it, but will sell it for about $100 including shipping. If you're interested, reply on here. Again, I'll have pics after the weekend if wanted.
It does not contain the original Katana disk, but I can get a copy of it.