Patent ID: 8870586

Claim:
A receptacle connector comprising: a receptacle insulative housing comprising a mating face, a receiving cavity extending through the mating face for accommodating a mateable plug connector, and a plurality of peripheral walls enclosing the receiving cavity; and a plurality of receptacle contacts fixed to the receptacle insulative housing, each receptacle contact comprising a cantilevered contacting portion extending into the receiving cavity; wherein the receptacle insulative housing integrally forms a protrusion which extends beyond one of the peripheral walls, the protrusion defining a receiving chamber in communication with the receiving cavity and a restricting wall for limiting the receiving chamber, the restricting wall comprising a first slot extending along a front-to-back direction and a first locking face exposed in the first slot for locking with the plug connector, the first slot extending through the restricting wall along a top-to-bottom direction and in communication with the receiving chamber, the first locking face located in a vertical plane and adjacent to the mating face; wherein the restricting wall defines a second slot separated from and parallel to the first slot, the second slot extending through the restricting wall along the top-to-bottom direction and in communication with the receiving chamber so as to form a second locking face exposed in the second slot, the second locking face being adapted for locking with the plug connector as well.