Dunno, I have not seen anything with Hyperion attached to a old portable outside of Canada, inside, pretty common around here I had 3 (!!) and seen at least 4 others, even repaired one (bad ram). Well built chassis, amber flat screen tube, dual 320K but can format 360K 5.25" some came with modem option. Standard 256k ram but can go to full 640K with a external card on that expansion port (aka bus). Also it's almost 90% compatiable but locks tight on norton's sysinfo memory scan. Disabling that feature allowed me to look around with this program. Ran most programs pretty good on that V20 cpu. Cool little item is that push-push power switch is lighted. If you get one with burnt out lamp, replace this with resistor and a orange LED. Original used incersencent lamp. Nice little portable that can fit under the airline chairs. I did saw that in their ad's pages of that period. :) Jason D. email: jpero(a)cgo.wave.ca Pero, Jason D.