@brbrock I was not in my office yesterday and did not want to trust random photos on the web. There is an optical input on the back. It is labeled S/PDIF rather than Coax and Toslink as it is the standard rather than the type of connector.
The 204 is a lovely sounding unit. I hear good things about the ModWright PSU but I have not heard it. I also steer people to LTA as they make a superb external PSU.
I don’t know the folks at ModWright personally though my experience with the gear I have had on trade from them has been positive. It always sounds good and is well made.
I know the folks at LTA personally, particularly the head of sales and marketing, Nicholas. I would give them a look too.
To be clear, I have no affiliation with either company and am not an LTA dealer.