Luckily I have a digital multi meter, and I can read specs.
Anyway, I encountered a problem today, I am missing some cables used by my power supplies.
To make things worse, I have mix of Antec and Corsair, and even more worse, even between brands, like corsair, and the Mount Rushmore of famously bad designs, the pins that go into different power supplies are interchangeable.
So, back to what I said, luckily I can read specs.
Going to buy a bunch of “it just fits” then hope the pinouts are ok.