Patent ID: 8449205

Claim:
An optical receptacle connector of a USB interface configuration, comprising: an insulative housing defining a mating plate with thereof a horizontal mating face and a vertical mating face essentially located behind the horizontal mating face; a plurality of conductive contacts activated around the horizontal mating face; a plurality of optical fiber units activated around the vertical mating face; an alignment post extending forward from the vertical mating face for cooperation with the optical fiber units; and a protecting mechanism located in front of the alignment post and on an outer side relative to the alignment post so as to stop further insertion of a USB type card which is only equipped with electrical terminals for mating with the conductive contacts while being equipped without optical items for mating with the optical fiber units for protecting the alignment post from being damaged due to confrontation with said USB type card, while allowing full insertion of a USB type plug which is equipped with both the electrical terminals for mating with the conductive contacts and the optical items for mating with the optical fiber units due to said USB type plug being formed with a first receiving cavity for receiving the alignment post and a second receiving cavity for receiving the protection mechanism without interference during mating between the optical receptacle connector and the USB type plug.