Patent attributes
Operation efficiency can be dramatically improved and a smaller configuration can be obtained by simplifying the optical connection. An optical module has an electrical connector to connect a device; an optical element unit being electrically connected to the electrical connector and provided with optical elements to convert electrical signals and optical signals and emitting or receiving light; an optical ferrule, having a plurality of optical fiber insertion holes, to hold optical fibers inserted into the plurality of optical fiber insertion holes so as to allow the fibers to be optically connected to the optical element; and an optical cable inlet to introduce an end part of an optical cable provided with the optical fibers. The cable unit with an optical module has an optical cable that includes a plurality of optical fibers and an optical module provided at two ends of the optical cable.