No PC in my new car, so starting to get rid of some things I no longer need.
For sale here is the Hippo Hifi USB DAC. Worked awesome on my setup. This one has all upgrades that were available: Op amp upgrade (OPA2107), capacitor upgrade, and DAC upgrade. Total cost new was $219, and it works like new.
EDIT: forgot to mention this also has the RCA outs.
Asking $140 shipped.