Pi3 plus - USB isolate Adum3160 - USB amenaro - DAC

Dear all,
I have buy cheap USB isolate using IC ADUM3160 to isolate signal from Pi to Amenaro but how come to let Volumio 3 realize the Isolate USB device?
My set up as below:
Pi3 plus → USB isolate Adum3160 → USB amenaro → DAC
The link Isolate USB: