This is not a Question, just to inform that this interface works on the Pacarana USB port out.
What is very nice, as this device is very small and has 4 inputs AND 4 outputs that are working on just USB!
Without extra power. A picture here with under preferences, speakers - QUAD mode.
You see the 4 output lights blinking and listing by headphones, the sound is good. The interface has 4 RCA ins/outs at the back. Not in use now, 4 chnl audio out by USB! This interface fits into your pocket.