A photoelectric conversion assembly is proposed. The photoelectric conversion module comprises three parts, photoelectric conversion module, a printed circuit board (PCB) and a hybrid cable. The photoelectric conversion module comprises an interposer, at least one optical element configured on the interposer, and an optical bench for the printed circuit board and the interposer configured thereon. Electrical wires are used for coupling to the printed circuit board. An optical ferrule is used for engaging with the photoelectric conversion module and an optical fiber component. A plug is used for electrically connecting the printed circuit board. A first lens array is configured under the interposer. A mirror is configured under the first lens array. A second lens array is configured left side of the mirror.