An electrical connector is provided. The electrical connector includes a body, a positioning component, and a movable cover. The body has a first end and a second end facing away therefrom. The first end has a first socket where an electrical plug is connected. The second end has a second socket where a transmission line is connected. The transmission line is arranged extending in a first direction. The positioning component is disposed at the second end. The lateral sides of the positioning component each include a first rib and a second rib. The first ribs and the second ribs extend along a second direction perpendicular to the first direction. The movable cover is disposed on a side of the positioning component away from the body. The movable cover is rotatable relative to the positioning component.