But... but... but how?
Wouldn't incompatible PSU cables and ports use differently-shaped slots to prevent such a dangerous mismatch?
EDIT: Is this just a "thing" with modular PSUs? It's just
expected of the customers to know "I shouldn't do that" without any physical barrier to prevent them?
EDIT 2: The first result on a cursory internet web search:
Get data recovery if you fried a Hard Drive / SSD by mixing modular PSU cables. Find out why Mixing Modular PSU Cables Can Kill Hard Drives.
ericscomputerservices.com
With a headline like that...
yikes.
EDIT 3: So now I'm even more confused why modular PSUs and cables would be designed like this. Imagine if appliances all had the
same plug, meanwhile outlets of
any voltage all have the
same-shape slots, as well.
Then the manufacturers just expect you to be careful what you plug into your wall.