FIG. 1 is a perspective view of a power adapter;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a side view thereof;

FIG. 5 is a bottom view thereof; and,

FIG. 6 is a rear view thereof.

The broken lines throughout the drawings are included for the purpose of illustrating portions of the adapter that form no part of the claimed design.