Optical connector includes a circuit board, a photoelectric element, a driver chip, a coupler, and a holder holding an optical fiber. The circuit board includes a substrate having a first surface and an opposing second surface and a circuit portion formed on the substrate. The substrate defines a receiving groove in the second surface and a through hole passing through a bottom surface of the receiving groove and the first surface. The photoelectric element and the driver chip are positioned on the bottom surface, and the photoelectric element aligns with the through hole. The coupler is positioned on the first surface and aligns with the photoelectric element through the through hole. The holder is supported on the first surface and connected to the coupler. The coupler optically couples the optical fiber with the photoelectric element.