In spite of my messages to them, Mystery Box, without so much as verifying their claims, still insist that the Ninja Inferno, coupled with the BlackMagic Design Ultrastudio Mini Monitor, will work as a grading monitor with any computer:
And since you’re working with a 1080 display and are managing the HDR interpretation yourself, you can get away with purchasing a small HDMI 1080 video output like the Blackmagic Design Ultrastudio Mini Monitor or Decklink Mini Monitor / Mini Monitor 4K if you’re using DaVinci Resolve or Final Cut Pro-X as your coloring software, or the AJA T-Tap or Io Express if you’re using another color grading application that supports AJA devices.
So far, I’ve tried the combination with my 2017 iMac, 2013 iMac and 2016 MacBook Pro, and the Ninja Inferno does not function with any of them. I’m still waiting to hear back from Atomos support.
The Daejeon Chronicles 
Unfortunately I think the Blackmagic Design UltraStudio Mini Monitor is the unsupported link in the chain, from contacting them today:
https://www.evernote.com/shard/s678/sh/84954a83-ef6c-403a-88e8-1c25bd039add/e6a0dd9e61058d75
But I’m interested in how you go.
Adam – While some of those premium i/o devices will certainly work, neither 4K nor HDR metadata are necessary for using the Inferno as a grading monitor; and some of those devices cost as much as $3,600 USD in Vietnam. Apparently, the AJA T-TAP will also work, but only with Premiere and Final Cut Pro – not with DaVinci Resolve! I might end up having to round trip from DaVinci to Final Cut Pro, so the AJA probably isn’t the best solution.