FIG. 1 is a perspective view of a housing for a network adapter unit showing our new design;

FIG. 2 is a top view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a rear view thereof; and,

FIG. 6 is a front view thereof.

The unshown bottom of the housing forms no part of the claimed design. The broken line showing of an antenna, the surrounding region, and a circular area in FIG. 5 is for illustrative purposes only and forms no part of the claimed design.