Power Supply Unit

FIG. 1 is a rear perspective view of a power supply unit, showing our new design;

FIG. 2 is another perspective view thereof showing the power supply unit in a state of use;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a left side view thereof;

FIG. 7 is a top view thereof; and,

FIG. 8 is a bottom view thereof.

The broken lines in the drawings illustrate the portions of the power supply unit, which form no part of the claimed design.