It also seems to be compatible with A1200 only, for now. :-)
If it does come out, it would be a classic Amiga dream come true. It would also be bad for AmigaOne/OS4.0 sales, and would most definitely discourage some people from migrating to AmigaOne from the classics.
I personally don't think we'll ever see this thing, just like the SharkPPC cards. Realistic expectations from Elbox on future products would be to release FastATA1200 Mk.4, of course still with no sign of any DMA operations, however we will have a complete logic and pcb redesign! :lol: