I had one of those in my 1200. It looks like an Elbox 1230-II card. Mine was fast, though unstable as hell, and it ruined two motherboards.
I had to place a heatsink on the CPU and two of the other chips to stop the regular freezes.
There is no working MMU in the CPU. The chips are full 28 MHz 030s labelled as MMU-less 40 MHz 030s. The MMU does not work those speeds. I guess you could buy a full 40 MHz 030 and put it on the card instead. That sure would take care of the heating problem.
Oh, I barely managed to make anysoftware to work with it. With 4 megs of RAM in the PCMCIA-slot, most more mem-demanding apps worked fine, althogh slow. When I put the turbo-card in the system, everything started to {bleep} up! :-x
