Behringer Ultragain Digital ADA8200 by Leveuho
Ok, this is surely not the best sounding ADAT gear, it doesn't have best sounding pres etc., but when you look at the price tag - less than 150 $ for a new unit, 8 channels with analog and adat outs - well, this is an amazing piece of equipment somehow.
I'm using it with synths and synths effect and differences between it and my main Focusrite Clarett Octropre ADAT are really, really minor.
I've tested it also on vocals, comparing to RME UFX on-board pres and ART VoiceChannel with custom NOS Tesla lamp. Ok, more differences heard but still - nothing bad or below acceptance, really.
If you're short on budget, look no further, this thing should make you happy. It looks solid (mine have worked for 6 months so far, everyday, heavy duty), it's easy to operate.