How to connect Tidal and an external USB drive to my Audio System without wifi

Has anybody found a way to connect a hi res music streaming service such as Tidal plus an external USB drive to their audio system, without using wifi? I currently feed these 2 sources by ethernet into my computer and then thru a Locus Polestar USB cable to the DAC in my Peachtree NovaPre. However, I would love if I could connect them to my audio system independently of my computer. (For example, the BlueSound Node2 is not the solution because it will not support an external USB drive.) My budget is around $500 and I would purchase used equipment if necessary. Thanks for your help.