Flex circuit and electrical communication assemblies related to same

A cable assembly comprising:

• a flex circuit including:
• a first circuit end, an opposed second circuit end, a first flex circuit side, and an opposite second flex circuit side, wherein the first circuit end of the flex circuit is configured to be physically attached, electrically attached or both to an IC package substrate to which an IC die is mounted;
• a first electrically conductive layer positioned adjacent to the first flex circuit side;
• a second electrically conductive layer opposite the first electrically conductive layer, adjacent to the second flex circuit side;
• a plurality of flex signal conductors disposed between the first and second electrically conductive layers;
• a first plurality of differential flex signal pads positioned at the first circuit end and a second plurality of differential flex signal pads positioned at the second circuit end, wherein the first plurality of differential flex signal pads are all positioned on the first flex circuit side and the second plurality of differential flex signal pads are all positioned on the second flex circuit side;
• a fourth plurality of differential flex signal pads all positioned at the second circuit end and all positioned on the first flex circuit side, wherein each of the second differential flex signal pads is offset from all of the fourth differential flex signal pads such that a line perpendicular to both the first and second flex circuit sides that passes through any of the second differential flex signal pads does not pass through any of the fourth differential flex signal pads;
• and
• at least one electrical flex connector positioned adjacent to the second circuit end wherein the at least one electrical flex connector is configured to mate with a cable connector and the cable connector carries a plurality of cables positioned adjacent to the second circuit end,
• wherein the electrical flex connector is further configured to unmate from the cable connector.