Disclosed is an improved card connector (1) comprising a shell assembly (2) and a pin connector assembly (3). The pin connector assembly has a plurality of connecting terminals (19) and grounding terminals (27) mounted therein. Connection pins (20) of the connecting terminals are arranged in upper and lower levels in the insulating housing. The grounding terminals are arranged parallel to the connecting terminals at upper and lower levels. The upper and lower grounding terminals are electrically coupled in the insulating housing, and a single row of DIP-type solder tails extending from the lower grounding terminals can be soldered to selected conductors on a printed circuit board.