1. An electrical connector module comprising:a casing comprising a front end and a rear end;
an electrical component having a mating end and a mounting end, and a bundle of conductive cables that extend out from the mounting end along a length, wherein the electrical component is mounted within the casing with the mating end at the front end of the casing;
a strain relief assembly, mounted to the casing separated from the electrical component along the length, the strain relief assembly comprising:
an electrically conductive sleeve;
a ferrule disposed between the bundle and the electrically conductive sleeve, such that the bundle extends through the ferrule, wherein the electrically conductive sleeve surrounds the bundle along at least a portion of the length, and overlaps at least a portion of the ferrule at a region of overlap, and does not overlap itself; and
at least one retention member that is positioned at the region of overlap, such that the electrically conductive sleeve extends to a location between the ferrule and the at least one retention member at the region of overlap, wherein the at least one retention member is compressed toward the ferrule so as to apply a compressive retention force to the electrically conductive sleeve between the ferrule and the at least one retention member.