A latching mechanism for latching a plug to a socket is provided. The socket has a housing for receiving the latching mechanism. The latching mechanism includes a latching member slidably received in the housing and a rotating member rotatably received in the housing. The latching member is capable of sliding between a latching position for latching the plug to the socket and an unlatching position for allowing the plug to be disengaged from the socket. The rotating member drives the latching member to slide between the latching position and the unlatching position when rotated. A connector assembly using the latching mechanism is also provided.