A connector module includes a housing, a cable, and a gasket. The housing is defined by a first shell and a second shell that mate at a seam. The housing includes a cable exit region defining a passage from a cable opening to an interior chamber of the housing. The cable is coupled to and extends from the cable exit region of the housing. A passage segment of the cable is disposed within the housing along the passage. A distal end of the cable is disposed within the interior chamber. The gasket is helically wrapped around the passage segment of the cable and positioned within the cable exit region of the housing. As the first and second shells are mated, the gasket seals the passage between an outer perimeter of the passage segment of the cable and an inner surface of the cable exit region.