Card edge connector with an improved retainer

A card edge connector for mating with an electronic card, comprising:

• an elongated housing having a pair of opposed side walls, a central slot extending along a length direction between the side walls, a first tower and a second tower upwardly extending from opposite two ends thereof, each first tower and second tower defining a U-shaped cavity downwardly recessed from a top end thereof to receive two side edges of the electronic card and preventing the electronic card from moving along a length direction of the housing;
• a plurality of contacts retained to the housing;
• a retainer hid in the first tower and not upwardly exposed to an exterior of the housing, the retainer having a non-flexible fastening portion retained in the housing and a flexible locking barb obliquely extending into the first cavity from a top end of the fastening portion to lock with the electronic card;
• and
• an ejector retained to the second tower and having a locking projection inwardly extending and located at an upper outer side of the cavity to lock with another side of the electronic card.

A card edge connector for retaining a memory module therein, comprising:

• an elongated insulative housing defining a center slot extending along a lengthwise direction thereof for receiving the memory module therein;
• a plurality of contacts disposed in the housing and located by two sides of the center slot in a lateral direction;
• a pair of towers located at two opposite ends of the housing in said lengthwise direction;
• an ejector pivotally mounted upon one of said towers and equipped with an upper locker for locking into a notch formed in one side edge of the memory module and a lower kicker for ejecting the memory module out of the center slot;
• and
• a retainer located in the other one of said towers and having a resilient locker for locking into another notch of the memory module in another side edge of the memory module;
• wherein
• said resilient locker is located between the upper locker and the lower kicker in a vertical direction perpendicular to said lengthwise direction and said lateral direction for easily unloading the memory module from the housing.