US Patent 7517237 Electrical card connector

An electrical card connector includes an insulating housing (2) having a base section (21) and a pair of lateral offsets (22) extending from the opposite ends of the base section, a shell (1) mounted on the insulating housing to define a card slot (5) therebetween for insertion of a card, a terminal module (321) retained in the insulating housing and comprising a plurality of terminals protruding into the card slot, and a pair of elastic pieces (6) mounted on the opposite lateral offsets of the insulating housing, respectively. Wherein each elastic piece protrudes into the card slot and a distance between the elastic pieces is smaller than a width of the inserted card.