blu
Wants the largest console games publisher to avoid Nintendo's platforms.
The reason a disk drive would have multiple supply powers is because it needs those, and apparently those rails are already present in the host.Is that from the Wii U drive? I'm not sure which of those numbers to go with, moving parts like optical drives and hard drives usually use the 12V rail but that calculation leads to 22 watts which seems too high. The next bump down gets us 5 watts, and the 3.35 one would be 1.6 watts which then seems too low.
So I'm not sure which of the three numbers is right, and what it means that there are three of them. It wouldn't make sense for it to have three different power draws.
Watts = Amps x Volts btw
Now, of those lines, the 12V is most likely the one for the spindle motor, but that one can have considerable ranges of consumption - spinning up the disk would be the most power-hungry task, while sustaining a constant speed would be much less demanding. Chances are the rest of the rails go to the head mover and the actual reader (laser) circuitry.
Unfortunately, we can draw next to no conclusions what the nominal power draw of the drive is - those inputs are max ratings (just as the console PSU has a max rating of 75W) and we don't know what combinations of loads can occur on those rails - if all can be up at once, or sequentially, or in any other pattern and loads.