@yoggi Don't worry about it, it was just a stupid remark that at the mobo, the power connector starts as yellow black red black (typical SATA order), then turns into yellow black black red (Molex), and when you connect your molex to sata adapter, you're turning the already one swapped yellow black black red back into yellow black red black. The fact that Molex is just funny looking SATA Power may be one of my brightest discoveries to this date.
The Molex connector on the factory power cable will behave just as you expect. The colors-to-voltages mappings are as per convention. The order of cables at the Molex connector of the factory power cable is typical as well. Since you asked you'll have this back in your head anyway, so when you plug in the Molex to sata adapter into the factory power cable, just make sure that red goes to red, black goes to black and yellow goes to yellow (it will)