Be careful with these ones.
When I ordered one from them, it was assumed to work with Emax, Emax-II, EIII, ....
But it turned out to work with none of them.
After some discussion, they sent me another SCSI/IDE adapter board.
They had been using different boards for a while because the "good" board is not produced anymore and they had no stock of them anymore. After a while they could put their hands on another batch of the old boards, so I received one of those after-sales.
This solved most of my problems, but the drive is still not working on my Emax SE. The Emax can format and save banks to the CF card, but loading banks fails. BTW I'm not the only having this problem.
The good news is that it works fine on the Emax-II and the EIIIX.
Note that after my initial problems, J.D. from SCSIForSamplers removed most Emu samplers from his compatibility list. Then after I reported that the new adapter board was much better, all Emu samplers appeared again on his website.
As I said, this is almost true, except for the Emax SE/HD.
...unless he has yet another SCSI/IDE adapter board now which even supports the Emax-I
That being said, I'm using their (external) CFCARD drive almost daily now with my Emax-II and that combination works really great.