Found something interesting in an ebay purchase.
https://photos.app.goo.gl/YvPBJsYnP8N3JffW7
A new TPDD dos, and not only that, one for KC-85, and not only that,
with that serial number, probably the first copy sold to a KC-85 user,
and who knows maybe the only one.
I hope I can back it up.
Ok not new. Pretty quickly turned up a scanned catalog and some articles
in the M100SIG
This catalog lists it, but all I want to know about is this video
adapter that comes in a form like a Travelling Software Booster Pak or
PG Designs SAFE:
https://archive.org/details/UltraSoftInnovationsLaptopCatalogue/page/n1/mode/2up
https://archive.org/download/M100SIG/M100SIG.zip/LIB-13-REVIEWS%2FDSKPWR.PRD
https://archive.org/download/M100SIG/M100SIG.zip/LIB-13-REVIEWS%2FDSKPWR.PR2
https://archive.org/download/M100SIG/M100SIG.zip/LIB-13-REVIEWS%2FDSKPWR.REV
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bkw