Yes, the FA-101 works but I can't tell you the numbers for latency.
The site has a nice table of working setups, but no user emails. I'd ask them directly.
What do you mean with restristrions on buffers (=latency?)?
AFAIK, usb cards impose 48kHz (96), 48/3 buffer setup to please everybody in the chain.
Jackd needs buffers to be power of 2, and usb-audio - multiples of 1ms.
we consider the 192 kHz more as marketing gag :)
That's to compete with Fireface.
Hope that helps.
Thank you. Dmitry.
