A cable (100) includes a plurality of wires (10) and a jacket (20) enclosing the wires. The wires includes a plurality of differential signal wires (11) for transmitting high speed signal, a detection signal wire (12), at least one auxiliary signal wire (13), and a plurality of lower speed signal wires (14). All of the differential signal wires, the detection signal wire and the at least one auxiliary signal wire are arranged at an outer peripheral of and enclosing the lower signal wires. Each two adjacent differential signal wire pairs are separated by one of the detection signal wire and the at least one auxiliary signal wire.