Portable Hard Disk Drive

FIG. 1 is a bottom, front, right side perspective view of a portable hard disk drive, showing the claimed design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a right side elevation view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The dashed broken lines in the drawing depict portions of the portable hard disk drive that form no part of the claimed design.