Abstract: An electrical connector includes first conductive terminals disposed on a bottom wall of a dielectric housing, each of which has a first contacting end portion opposite to a first coupling end portion that extends outwardly of one of a front open side and a rear side of the housing and projecting into a first card receiving space confined by the bottom wall, a partition wall and lower wall portions of opposite lateral walls of the housing, and second conductive terminals disposed on the partition wall, each of which has a second contacting end portion opposite to a second coupling end portion that extends outwardly of the rear side of the housing and projecting into a second card receiving space confined by the partition wall, upper wall portions of the lateral walls, and a cover plate mounted on the lateral walls and disposed above the partition wall.