I don't have a cable in front of me, but I seem to remember there being two black, a red, and a yellow wire on a power cable. I suspect those wires carry different voltages (or ground, for black), and ...

I've noticed on some SATA to 4-pin molex connectors that the "orange" wire is missing. I know the orange is a 3.3v wire. If the HD is capable of running without it, why is it on the actual SATA power ...

The Serial ATA standard for connecting computer devices has largely replaced older standards, such as IDE. SATA offers several advantages over IDE, such as vastly increased speed and slimmer cables ...