A connector adapted to have a portable object having contact terminals on one surface engage with contact elements within the connector upon insertion therein comprising a case, a chamber within said case, an opening leading into said chamber and adapted to receive said portable object along a predetermined direction, connecting means in said chamber for electrically connecting said portable object upon insertion into said chamber, said connecting means including electrical contact elements disposed to be actuated from a first stable idle position of the connecting means to a second operating position of the connecting means to cause landing of said contact elements on respective contact terminals and establish an electrical connection therebetween upon displacement of the portable object within the chamber, each of said contact elements being flexible and having, respectively, one fixed extremity affixed to said connecting means and one free contact extremity directed towards said opening, the free contact extremity being positioned to engage its respective contact terminal on the object upon the object being inserted into the chamber, and the contact element being formed to flex upon such engagement such that the free contact extremity moves in an opposite direction to the direction of insertion of the object and such that the relative movement between the free contact extremity and the respective contact terminal is greater than said displacement of the portable object within the chamber after landing of the contact element on the respective contact terminals.