Here is a picture of the left side and the right. The right side has the vga cable and monitor controls. I can't even see where you would plug in a power cable.
There is about 6 prongs next to where the vga cable plugs in, maybe that is it, but since there wasn't a cable with the monitor I have no idea. The two cables running down the back (on the left and middle from top to bottom) are my speaker wires.
I will have to call them in the morning.