Power adapter

FIG. 1 is a top, front and side perspective view of a power adapter, showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a first side view thereof;

FIG. 5 is a second side view thereof;

FIG. 6 is a top view thereof; and

FIG. 7 is a bottom view thereof.

FIG. 8 is a front perspective view of a second embodiment of an ornamental design for a power adapter;

FIG. 9 is a front view of the second embodiment thereof;

FIG. 10 is a rear view of the second embodiment thereof;

FIG. 11 is a first side view of the second embodiment thereof;

FIG. 12 is a second side view of the second embodiment thereof;

FIG. 13 is a top view of the second embodiment thereof; and,

FIG. 14 is a bottom view of the second embodiment thereof.

The broken line portion of the figure drawings is included to show unclaimed subject matter only and forms no part of the claimed design.