Integrated circuits; integrated circuit modules; optical integrated circuits; optical integrated circuit modules; chip-on-board optical integrated circuit modules; optical transceivers; photoelectric conversion circuits; photoelectric conversion devices; optical communication modules; electric connectors; coaxial cable connectors; flexible printed circuit board (FPC) connectors; flexible flat cable connectors; board-to-board connectors; wire-to-board connectors; computer interface connectors; docking connectors for use in coupling circuit boards; connectors for electronic circuit boards; connectors for computer memory cards; electric wire connectors; terminals (electricity); terminals for electric connectors; terminals for printed circuit board connectors; terminals for electric wire and cable connectors; electric wires and cables; cables for use in electrical connection between electronic components; cables for high-speed communications; cables for use in electrical connection on electronic circuit boards; connectors for computers; connectors for hard disc drives; connectors for hard disc drive spindle motors; plug connectors; plug-in connectors; power supply connectors; cable connectors; optical fiber connectors; electronic circuit connectors; optical signal transmission devices; optical signal transmission apparatus; optical signal transmitters and receivers; cables for optical signal transmission; cable connectors for optical signal transmission