I though of another option for you to use USB with a Mimby. With my Bimby I use a NAD DAC 2. It has a little transmitter that plugs into your computer's usb then sends the digital signal up to 24 bit 96hz to a little box that sits next to the Bimby. The little box sends a digital signal by coax into the Bimby. To me it sounds just as good as when I was using the coax output of my FiiO X5 into the Bimby. And having the wireless is very nice. It does not use your network wifi. It has 3 frequencies to choose from and you just match the box and transmitter. Was supper easy to set up. Just plugged it in and it worked. Keep in mind I do not use the internal DAC of the NAD DAC2. I just use it to pass the digital signal from my computer usb to my Bimby using the Bimby's coax input. Here are some links: https://nadelectronics.com/product/dac-2/ Note that this review convinced me to get it because of this quote: "One interesting caveat to this is switching from using the NAD via the analogue outputs to the coaxial one into another DAC shows that it is a completely transparent wireless transfer device. With the NAD running into the digital input of a Naim ND5 XS, the performance is completely in keeping with the performance of the more expensive streamer and transfer at sampling rates up to 24/96kHz is seamless and extremely effective." https://www.avforums.com/review/nad-dac2-wireless-dac-review.10052 I ordered mine off Amazon.