Abstract: The present invention relates to an electrical connection assembly particularly for local area networks of high information bit rate, characterized in that it comprises: a socket (100) comprising electrical contacts (120) designed to be connected to the conductor of at least one connecting cable, while at the same time being accessible on the socket, and an insert (200) which can be fixed mechanically to the socket (100) and itself having electrical contacts (220) designed to come automatically to bear against the electrical contacts (120) of the socket (100) when the insert (200) is engaged therein, while at the same time themselves being accessible on the insert (200) in a selective layout tailored to the layout of a complementary connection assembly.