Abstract: A socket connector (1) is provided which comprises a base (12) having a plurality of passages (126) formed therein, the passages are arrayed along a mounting surface (120) of the base, and each passage receives a conductive terminal therein. A cover (11) is attached to the base and adapted to slide on the base in a predetermined sliding direction. A plurality of recesses (130) is formed in the base and arrayed between some of adjacent arrays of the passages of the base, and the whole amount of the recesses in the base is less than the whole amount of the passages of the base.

Abstract: An electrical connector (1) comprises an elongated housing (10) and a mating groove (11) formed on one surface of the housing (10) to receive a leading edge of a extension daughter card (4) so as to electrically connect the card (4) to a printed circuit board (3) where the connector (1) is seated. A plurality of passageways (12) having signal conductors (2) installed therein is formed in two sidewalls of the mating groove (11). A ridge-shaped support mechanism (13) projects from one side surface of the housing (10) and is located abutting against one lengthwise edge of the surface having the mating groove (11).