A cable (100) includes: plural centrally disposed first wires (1); an inner shielding layer (17) enclosing the first wires; plural second wires (2) disposed at an outer side of the inner shielding layer for transmitting a common power signal; and plural pairs of differential signal wires (3) disposed at the outer side of the inner shielding layer; wherein each pair of differential signal wires is disposed between two adjacent second wires.