I am trying to understand what the power ratings printed on optical drives mean. For example, the recent Plextor PX-891SA lists a power rating of DC 5V-1.5A / DC12-2.5A next to the serial number. What do these values mean? I think I understand the voltage rating, but I am not so sure about the amps.
Is that the power drawn by the optical drive? Or perhaps the maximum power that is safe to operate the drive?
This question has come to my attention as I am trying to find an external enclosure for my optical drive. I notice, however, a lot of external enclosures include a power output of DC12V-2.5A…which has me wondering if this is enough power to operate my drive…