That has to be the new iFi iSanitizer Whole rack air purifier with UV light! It kills dust mites and mold spores that degrade sound before it ever reaches our ears. 

Well, it looks like a Silver Ford Pinto after being taken over by the Borg.
But, I have a feeling it might be a streamer to challenge the microRendu.
On second thought, it might be a balanced headphone amplifier or a dac/balanced HP; likely a Nano.