The ultraRendu can output to UPnP Renderers like my Naim NDX mk1 (via the Sonore UPnP Bridge app, which runs on the ultraRendu).
So it's a pure network bridge solution, which Roonifies my non-Roon-ready NDX. In other words, there's only a single ethernet cable connection to the ultraRendu. No direct connections to my NUC running Roon ROCK, or to my Naim NDX, other than ethernet cables.
@iFi audio , it would be awesome if the Zen Streamer could add an additional output option for UPnP Renderers.
Yes, I could use the SPDIF output instead, but the NDX is optimized for UPnP, and sounds best that way.