The ornamental design for a dog-shaped USB hub, as shown and described.
FIG. 1 is a left side elevational view of a dog-shaped USB hub showing my design in a first position;
FIG. 2 is a right side elevational view thereof;
FIG. 3 is a bottom plan view thereof;
FIG. 4 is a top plan view thereof; and
FIG. 5 is a front elevational view thereof;
FIG. 6 is a rear elevational view thereof;
FIG. 7 is a perspective view thereof; and,
FIG. 8 is a perspective view showing the dog-shaped USB hub in a second position.
The claimed article is shown broken away in FIGS. 1-8 to indicate indeterminate length. The illustrated positions of the dog-shaped USB hub of my design are understood to be exemplary of possible alternative positions.