A cable connector assembly includes a PCB defining some second conductive pads disposed on a rear end portion of the PCB and some third conductive pads disposed behind the second conductive pads, a cable defining a number of coaxial wires and single wires, and a housing. Each coaxial wire has a first inner conductor, an inner insulative layer enclosing the first inner conductor, a metal braided layer soldered to the corresponding third conductive pads, and an outer insulative layer. Part of the coaxial wires and single wires adjacent to the coaxial wires are disposed on at least one surface of the PCB. Each single wire has a second conductor, a first insulative layer, and a second insulative layer. The first insulative layer is made of heat-resisting material to prevent the adjacent single wires from being damaged when soldering the metal braided layer of the coaxial wires.