Connector assembly for printed circuit board interconnection

An electrical connector comprising:

• a first and second connector part each being mounted on one of a primary or a secondary circuit board, said first connector part having a mounting side abutting against the secondary circuit board and said second connector part having amounting side abutting against the primary circuit board;
• a group of first conductors being received in said first connector part while another group of second conductors being received in said second connector part;
• each first and second conductor having one tail portion to be mounted on the circuit boards respectively, and a first contact tail portion of said first conductor engaging with a second contact tail portion of said second conductor;
• wherein
• the one tail portion for board mounting of said first and second conductor has identical shape and functional mechanism, and the first contact and second contact tail portion of said first and second conductor have the same functional mechanism;
• wherein
• a first fastener passing through the primary circuit board and the first connector part in a first direction and a second fastener passing through the second circuit board and terminating within the first connector part in a direction transverse to the first direction.