No...I mean
OPTICAL, you put two drives in the computer by putting one of them in place of the
OPTICAL drive.
Also learn what you are talking about before you come in here trying to "help" people...
http://www.tomshardware.com/reviews/ssd-hdd-battery,1955-2.html
An SSD uses just as much power as a HDD because the SSD is either on or off, the HDD has variable speeds it can go through from idle to max which are different power requirements/use.