Help identifying disk interfaces

[RWAP]

A user in Germany sent me a picture of two disk interfaces he has for his QL.

They look as though they might be home made - but any ideas on who might have made them?

Pictures below:

[Dave]

What do the EPROM images contain?

[Jungsi01]

Hello Rich,

I'am the German user you are talking about.
In the meantime I've got a dual flppy disk for the QL. So I've tested the two interfaces.
When turning on the QL I see the following messages:
First picture (with the white connector):
XDISK WOLF-COMPUTER V1.00 (C)1987
Second picture (with the black connector):
QDOS Disc Controller V1.16 (C) 1984
For the second controller I had to turn around the floppy cable
Both interfaces are ok and I've transfered a few programs with the QEmuLator.
Regards
Gerhard (Jungsi)