Patent ID: 7828559

Claim:
A board-to-board connector assembly, comprising: a receptacle connector having a receptacle housing defining a receiving recess at a top thereof and four sidewalls formed around the receiving recess, a plurality of first terminals disposed in the receptacle housing, and at least one first fixing member having a base portion disposed in the sidewall, a top of the base portion being bent toward one side and then extending downward to form a propping portion stretching into the receiving recess and defining a first fixing structure thereon; and a plug connector mated with the receptacle connector and having a plug housing received in the receiving recess of the receptacle housing, a plurality of second terminals disposed in the plug housing and electrically contacting the corresponding first terminals, and at least one second fixing member having a base plate disposed on the plug housing, at least one end of the base plate extending downward to form a connecting portion disposed on an outside surface of the plug housing and defining a second fixing structure thereon, wherein the second fixing structure is buckled with the first fixing structure and the connecting portion abuts against the propping portion when the plug connector is engaged with the receptacle connector.