It was always my plan - SD for everything. And today we're one step closer. With a single interface board for ... well, everything. All you need to get sd-card powered fun from your favourite Z80 based 8-bitter is an inexpensive adapter board. And suitable code to access the card, naturally.
This is the first production board - ready for one lucky Tatung Einstein owner. We're still a way off full production but with this unit we're one step closer.
Currently X = Tatung Einstein + Tandy TRS80 Model 1. Next up..?