As shown in photos, it has a Opus card installed and some kind of additional ROM PCB labelled Aries B12 which looks like it was stuck to underside of top cover. Tried powering on but no signs of life, no beeps or LEDs lit up, I do not have a monitor to test further, so it is sold for spares or repairs only. See my other items for more vintage computing which came from a large collection, more will be listed in due course.
