The ornamental design for mezzanine connector housing, as shown and described.
FIG. 1 is a front view of a mezzanine connector housing, showing our new design in an embodiment;
FIG. 2 is a rear view thereof;
FIG. 3 is a top view thereof;
FIG. 4 is a bottom view thereof;
FIG. 5 is a left side view thereof;
FIG. 6 is a right side view thereof;
FIG. 7 is a first perspective view thereof;
FIG. 8 is a second perspective view thereof;
FIG. 9 is a reference disassembled perspective view indicating an example state of the mezzanine connector housing with a plug; and,
FIG. 10 is a reference perspective view indicating an example state of use thereof.
The plug in FIGS. 9 and 10 is provided to illustrate an environment related to the claimed design and forms no part of the claimed design. The broken lines in the drawings illustrate environment and portions of the mezzanine connector housing that form no part of the claimed design.