Card connector

A card connector comprising:

• an insulative housing defining a card receiving cavity;
• a plurality of contacts disposed in the housing with contact portions in communication with the card receiving cavity;
• an ejector disposed in the housing comprising a slider moving along the card insertion/ejection direction with the card inserted/ejected, holding means to securely hold the slider in a final position where the card is electrically connected with the contacts and to release the slider from the final position when ejecting the card, and a locking member disposed in the slider to be moveable in or out of the card receiving space;
• and
• a primary biasing device located around a rear portion of the housing to generate required forces for ejection of the card, and a secondary biasing device located around a front portion of the housing for counterbalancing the forces generated by the primary biasing device during card ejection.