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A strain relief assembly is provided for a bundle of cables surrounded by an electrically conductive sleeve. The strain relief assembly can include a ferrule and at least one retention member. The cables extend through the ferrule, and the sleeve extends over the ferrule, so as to be captured betwee

A strain relief assembly is provided for a bundle of cables surrounded by an electrically conductive sleeve. The strain relief assembly can include a ferrule and at least one retention member. The cables extend through the ferrule, and the sleeve extends over the ferrule, so as to be captured between the ferrule and the retention member.

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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

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; andat 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. 2. The electrical connector module as recited in claim 1, wherein a straight line extending out from a select location in the radial direction passes through the ferrule and only passes through the electrically conductive sleeve one time. 3. The electrical connector module as recited in claim 2, wherein the select location is disposed inside the electrically conductive sleeve. 4. The electrical connector module as recited in claim 1, wherein the bundle extends through the ferrule along a longitudinal direction, and the ferrule and the at least one retention member defines surface texture that interlocks so as to limit movement of the at least one retention member relative to the ferrule along the longitudinal direction. 5. The electrical connector module as recited in claim 4, wherein the surface texture interlocks with the electrically conductive sleeve captured therebetween. 6. The electrical connector module as recited claim 1, wherein the ferrule is electrically nonconductive. 7. The electrical connector module as recited claim 1, wherein the conductive cables are electrically conductive. 8. The electrical connector module as recited claim 1, wherein the conductive cables are optically conductive. 9. The electrical connector module as recited claim 1, wherein the at least one retention member comprises first and second retention plates disposed opposite each other. 10. The electrical connector module as recited claim 1, wherein the first and second retention plates combine to surround the electrically conductive sleeve. 11. An electrical connector system comprising: the electrical connector module as recited in claim 1; andwherein the casing has walls comprising first and second substrates disposed such that the electrical component is between the first and second substrates. 12. The electrical connector system as recited in claim 11, wherein the casing is electrically conductive. 13. The electrical connector system as recited in claim 12, wherein the conductive cables extend from the connector, between the first and second substrates, to the ferrule. 14. The electrical connector system as recited in claim 13, wherein the electrical component is a first electrical connector, andthe electrical connector system further comprises a plurality of like electrical connectors disposed between the first and second substrates. 15. An electrical connector system comprising: the electrical connector module as recited in claim 1;wherein the casing is an electrically conductive casing that defines an interior void,wherein the at least one retention member is defined by the casing, the ferrule is disposed in the interior void, and the electrically conductive sleeve extends out the rear end. 16. The electrical connector system as recited in claim 15, wherein the at least one retention member comprises first and second retention plates disposed opposite each other and defined by the casing. 17. The electrical connector system as recited in claim 16, wherein the first and second retention plates combine to surround the electrically conductive sleeve. 18. The electrical connector system as recited in claim 16, wherein the electrically conductive casing comprises conductive springs that are configured to contact an electrically conductive cage when the casing is inserted into the cage. 19. An electrical connector assembly comprising: the electrical connector system as recited in claim 15;the electrically conductive cage; anda complementary electrical component supported at a front end of the cage,wherein the electrical connector system is configured to be inserted into the cage from a rear end of the cage toward the front end until the electrical component mates with the complementary electrical component. 20. A method for providing strain relief to a bundle of cables surrounded by an electrically conductive sleeve, the method comprising the steps of: forming a strain relief assembly by: inserting the bundle of cables through a ferrule along a longitudinal direction, wherein the bundle of cables extends from an electrical component;sliding the electrically conductive sleeve over the ferrule in a forward direction without overlapping the electrically conductive sleeve over itself in a rearward direction opposite the forward direction, wherein the forward and rearward directions are along the longitudinal direction; andsecuring at least one retention member relative to 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; andsecuring the electrical component to a first end of a casing and securing the strain relief assembly to the casing, separated from the electrical component along the length. 21. The method as recited in claim 20, further comprising the step of interlocking surface texture of the ferrule with surface texture of the at least one retention member so as to limit movement of the at least one retention member relative to the ferrule along a longitudinal direction that includes the forward direction and the rearward direction. 22. The method as recited in claim 21, wherein the interlocking step comprises capturing the electrically conductive sleeve between the surface texture of the ferrule and the surface texture of the at least one retention member. 23. The method as recited in claim 20, wherein the securing step comprises securing first and second plates with respect to each other so as to capture the electrically conductive sleeve between the ferrule and each of the first and second plates. 24. The method as recited in claim 23, further comprising positioning the first and second plates opposite each other. 25. The method as recited in claim 20, wherein securing the electrical component to a first end of a casing and securing the strain relief assembly to the casing comprises supporting the first and second plates at a rear end of first and second substrates, the first and second substrates comprising portions of the casing, and positioning the electrical component at a front end of the first and second substrates between the first and second substrates, wherein the electrical cables extend from the electrical component to the ferrule. 26. The method as recited in claim 25, further comprising the step of supporting a plurality of electrical components at the front end. 27. The method as recited in claim 20, wherein: the casing is an electrically conductive casing, and the casing defines the at least one retention member; andthe ferrule is supported in the casing, such that the electrically conductive sleeve extends out a rear end of the casing opposite the front end. 28. The method as recited in claim 27, further comprising the step of inserting the casing into an electrically conductive cage in the forward direction until the electrical component mates with a complementary electrical component supported by the cage. 29. The method as recited in claim 28, further comprising the step of contacting with the cage a spring that extends out from the casing.