Patent ID: 7794259

Claim:
An electrical connector assembly for connecting memory modules to a printed circuit board (PCB), comprising: a first connector mounted on a top surface of the PCB, including a first insulative housing and a plurality of first contacts received and retained in the first housing, and the first housing defining a front face and an inserted slot for receiving the memory module running through the front face along a longitudinal direction, and each of the first contacts defining an elastic arm partly projecting into the inserted slot and a soldering leg connecting to the PCB; and a second connector mounted on a bottom surface of the PCB, including a second insulative housing and a plurality of second contacts received and retained in the second housing, and the second housing defining a front face and an inserted slot for receiving the memory module running through the front face along a longitudinal direction, and each of the second contacts defining an elastic arm partly projecting into the inserted slot and a soldering leg connecting to the PCB; wherein the first housing defines a raised portion projecting downwards from a bottom face thereof, thereby providing a cavity at a bottom portion of the first connector, and a part of the second housing projects beyond the top surface of the PCB, and the soldering legs of the second connector run through the opposite top and bottom surfaces of the PCB and enter into the cavity.