A fiber optic cable assembly, comprising: a fiber optic cable comprising a cable jacket, one or more cable strength members disposed within the cable jacket, and one or more optical fiber sub-units disposed within the cable jacket, wherein each optical fiber sub-unit includes a plurality of optical fibers disposed within a sub-unit jacket, and wherein the plurality of optical fibers in each optical fiber sub-unit is constrained as a unit within the respective optical fiber sub-unit; an end portion of the fiber optic cable comprising end portions of the one or more optical fiber sub-units and end portions of the one or more cable strength members, both exposed from an end portion of the cable jacket; and a furcation assembly receiving the end portion of the fiber optic cable at a first end of the furcation assembly, the furcation assembly terminating the end portion of the cable jacket and the end portions of the one or more cable strength members, and the end portions of the one or more optical fiber sub-units extending through and from a second end of the furcation assembly; wherein the one or more cable strength members are disposed within the cable jacket in a first length, and the one or more optical fiber sub-units are disposed within the cable jacket in a second length, characterized in that second length is greater than the first length; the sub-unit jacket of each optical fiber sub-unit is constrained in the furcation assembly; and each of the plurality of optical fibers disposed in the one or more optical fiber sub-units is not exposed outside of the sub-unit jackets within the furcation assembly. a fiber optic cable comprising a cable jacket, one or more cable strength members disposed within the cable jacket, and one or more optical fiber sub-units disposed within the cable jacket, wherein each optical fiber sub-unit includes a plurality of optical fibers disposed within a sub-unit jacket, and wherein the plurality of optical fibers in each optical fiber sub-unit is constrained as a unit within the respective optical fiber sub-unit; an end portion of the fiber optic cable comprising end portions of the one or more optical fiber sub-units and end portions of the one or more cable strength members, both exposed from an end portion of the cable jacket; and a furcation assembly receiving the end portion of the fiber optic cable at a first end of the furcation assembly, the furcation assembly terminating the end portion of the cable jacket and the end portions of the one or more cable strength members, and the end portions of the one or more optical fiber sub-units extending through and from a second end of the furcation assembly; wherein the one or more cable strength members are disposed within the cable jacket in a first length, and the one or more optical fiber sub-units are disposed within the cable jacket in a second length, characterized in that second length is greater than the first length; the sub-unit jacket of each optical fiber sub-unit is constrained in the furcation assembly; and each of the plurality of optical fibers disposed in the one or more optical fiber sub-units is not exposed outside of the sub-unit jackets within the furcation assembly.