Foone🏳️‍⚧️ on Nostr: I seriously can't think of any era of PC hardware where that was even remotely ...

I seriously can't think of any era of PC hardware where that was even remotely possible, for physical connector reasons.

You could use the same connector for both RAM and hard drives back in the early PC era with HardCards and RAM upgrade ISA cards, but that wasn't really a case of mixing up the connectors: they just both plugged in the same generic place.