It had PCMCIA and a kind of parallel port for an external floppy, but this latter was a proprietary connector for which adapters (and I seem to remember also do

It had PCMCIA and a kind of parallel port for an external floppy, but this latter was a proprietary connector for which adapters (and I seem to remember also docking stations) existed: https://en.ysrl.org/butterfly/review.html https://en.ysrl.org/butterfly/review.html