general help

[mintakax]

I'm just getting started with higher end digital audio and really don't know much !  I've recently done a massive upgrade to my system and am looking for the way to play the highest quality music possible, given some limitations. I have a Lumin D2 streamer and have been using it with Roon to stream music from Tidal. The D2 has a usb input. What is the best way for me to play  purchased DSD 128bit (5.6 MHz) music ? I'm currently putting this music on a usb stick and playing it through the D2. As of now the D2 is the only DAC I have and usb is its only input. What are the considerations that I need to pay attention to if I hook up a larger usb drive ? Thanks if you can help !