Cable and cable connector assembly thereof

Provided is a cable which comprises a plurality core wires and an insulating sheath wrapping the core wires. The plurality core wires comprise a detecting signal line for transferring detecting signals, an auxiliary signal line for transferring auxiliary signals, a low-speed signal line for transferring low-speed signals, and two power lines for transferring power. A cable connector assembly comprises a connector and the cable. The connector comprises a circuit board connected with the cable. The circuit board comprises a first surface and a second surface which are arranged oppositely. The cable comprises the insulating sheath and a plurality core wires. The plurality core wires comprise two power lines for transferring power. The power lines are soldered on the first surface and the second surface of the circuit board respectively. The cable and the cable connector assembly may transfer 5A heavy current.