How to Connect DAC's USB Port to Ethernet Cable

My DAC is a Bricasti M21. I would like to try streaming native DSD256 files using the DACs true 1-bit DSD.

Music is currently streamed using Audirvana on my android phone from a network switch using the DACs ethernet port with an ethernet cable. The DAC can only stream DSD256 files using its USB port. I’d like keep the ethernet connection to stream other file types and Qobuz. I can switch to the DACs USB port using the remote when I want to listen to DSD256 files.

The computer with the DSD256 files is downstairs and the Bricasti is upstairs. How do I add a cord from the network switch in the music room to the DACs USB port? Do I need a separate box in the music room that converts the network ethernet signal to a USB signal or can I use a USB-B to ethernet adapter?

I already contacted the manufacturer, but the person I talked with said they have never tried this before.