An electrical connector including a frame, electrical contacts and a system for retaining and ejecting an electronic module with the electrical contacts. The frame has a receiving area which is sized and shaped to removably receive an end of at least one electronic module. The electrical contacts are connected to the frame. The contacts include spring contacts adapted to make removable connection to contact pads on the end of the electronic module at a first inserted position. The system for retaining and ejecting the electronic module with the electrical contacts includes at least one ejection unit having a spring, a pusher and a guide connected between the frame and a guide channel in the pusher. The ejection unit is adapted to stationarily locate the pusher at two positions on the frame based upon biasing force of the spring and upon location of the guide in the guide channel.