I'm think it is full AGA as on the
german instruction sheet (from hardware info page above) it says:
"Vielen Dank fur den Kauf von arXon-ScanDoubler fur den AMIGA 4000"
Which roughly translates as:
"Thankyou for the purchase of the arXon-Scandoubler for the AMIGA 4000"
So if it is sold as an A4000 scandoubler I figure it must be AGA.
