See instructions ... eh!

OVERALL OPINION

I used a pair for about a year, only in sample rate converter. I never even test the A / D & N / A (I have a Fireface, do not just shuffled either) and this use is a good machine, no complaints.
Complete level connectivity, reliable, extremely simple to use, low latency, and my time prsentation good for the price.
I do not know if it's made in China, India or in a cave in the wilds of Pakistan but the price of this brand always impress me. It is not even said that DIY is cheaper ca lol!
In short it is a good buy for this use!