A cable connector assembly includes an electrical connector (100) and cable (300) connected with the electrical connector. The cable has a plurality of core wires (31) including a plurality of first wires (34) and second wires (35), an outer jacket (32) enclosing on the core wires, and a shielding layer (33) enclosing the second wires. The first wires having a power wire (341) for power transmission and a plurality of coaxial wires (342) for high speed signal transmission, wherein the second wires have a detective wire (351) for detection signal transmission, a pair of ground-wires (352), a twisted pair wire (353) for USB 2.0 signal transmission an spare wire (354). Each of the first wires has a larger diameter than that of second wires, and the first wires are located between the shielding layer and outer jacket, the second wires are enclosed in the shielding layer.