And that’s the one I had bought, since USB2 is easily sufficient to transmit DSD512 or 768kHz/32bit.
I got it, because the multiple voltage regulator board in my “Silentmaxx” 
fanless server introduced faint but irresolvable audible buzz, when connecting my SMSL M300MKII DAC directly via USB.
Removing the USB’s +5VDC and GND lines, leaving just the Data+/Data- didn’t help, nor did balanced analog output, any grounding schemes or different power supplies for the respective units.
The Intona absolutely silenced that issue.
Intona aren’t originally into digital audio, but rather professional medical devices.