Hi Dtc,
I haven't opened it up, but I do have photo's saved. The ads clearly say Galvanic isolation all over the place. They don't tell you that it won't play 24/88 or 24/176, I found that on my own and upon emailing they confirmed. They use the Cmedia new CM6610 true USB 2.0 high speed chips. I know that Schiit uses a newer version of this on the Bifrost and there have been lots of post that there are issues playing the same files. My understanding though is that this is the sole difference between the Schiit chip(cm6631?) and this, so my guess is that this chip is the cuprit of why it will not pass these files.
My DAC does have a USB in using the Tenor 7022 which is 24/96 and in this case is not Asynchronous. The Lars Converter, clearly improved over the stock usb in with a touch of focus to instrument placement, It clearly improved just a touch of tightness in the bass and it clearly improved high end extension. I first used this powered by my USB only, it was quiet and smooth, before it was ever completely burned in, I found a 6v 1 amp walwart that I had previously added a cap to and replaced the cord on both ends with heavier guage, surprisingly nice little power supply and I put it on and never really compared or worried about galvanic isolation again.