Good Morning all....
I have recently moved to the sole use of of RPi4's with VitOS and have upgraded to the latest SMSL SU-9 DAC. So, I have the following items available for any member that is looking to have a USB DAC with a Roon network endpoint.
If you are using ROON and would like a very versatile DAC and endpoint option, the three of these all work great in achieving that solution.
Happy to help and discuss for those that are interested.