[Penchum]

Originally Posted by strologu

ok, i'll do it. I have also founded this one NEW USB to SPDIF & OPTICAL Interface UDA1321/CS8405A su eBay.it CD Players Recorders, Home Audio, Consumer Electronics
Same spec. but coaxial output too..i'm wondering which one could be better.
I know that there are many enthusiastic owner of the Trends Audio 10.1 DAC, used only to connect a pc to a dac, but i think it's too expensive as simple usb to spdif transport.

You should find out if it can drive both digital outputs at the same time. If it can, that would be great (more flexibility) for later on. If not, then it is simply a matter of "do you need a coaxial connection" to decide.