Another SMSL IDEA video review (SABAJ DA2) which might help you to answer some mentioned question here. Also includes proper foobar setup for the native DSD playback really working .
DarrylGYou're welcome. Overall a great value DAC no doubts. Just as mentioned here by others. I noticed and also mentioned it in my full written review the problem with the USB port is in my opinion due its lightness. Micro USB port is as we all know fragile and because this DAC is so tiny an most importantly super light the cables from both sides just makes the force on the port and it looses the cable in a straight position, meaning it might lose a contact if you are not careful and hit it or something. The rest I think is covered in the video.
DarrylGI agree. I also have felt it delicate. But I understand that the design idea was to make it really small and purposely small portable dac/amp unfortunately it doesn't go with a general fragility of micro usb port. Basically as I said the cables you connect it with are more heavier than the DAC itself. But still from my point of view it's understandable and for what you are getting it is worth to give it a bit of extra care and always double check it's plugged well.
https://youtu.be/XUiCICBqM7k