Woahhh it's been a while.... No, I still do not have the interface in my possession but things are moving....
In fact, they explained me that they are not able to pass audio through the unit and that they thought they had to get a vs700c to make it work. I answered they just need the vs700r editor (with the link of course) and the 2.0 drivers.
Now that should do the trick.
It took forever but I understood that they changed ownership very recently and were busy with some new products and some new mods. Just a bad timing for me.
I didn't asked for the fan but I can't imagine that's a custom fan. We just need to know the required voltage and get a fan with a control connector.... ok I'll ask in my next email
I'll keep you posted!