Patent ID: 7927114

Claim:
A card edge connector for connecting a memory module to a printed circuit board comprising: an elongated insulative housing defining a mating groove in the housing along a longitudinal direction thereof, a plurality of first and second terminal grooves defined at opposite sides of the mating groove; a plurality of first and second terminals respectively received in the first and second terminal grooves; the first terminals are inserted into the first terminal grooves from a front-to-rear direction, while the second terminals are inserted into the second terminal grooves from a rear-to-front direction; and a pair of grounding members arranged at diagonal of the mating groove; a pair of metallic retaining devices are respectively attached onto the arms for strengthening the flexibility of the arms and guiding the memory module to be inserted into the mating groove; each arm comprises a root portion jointing with the base portion, and upper and lower side arms, separately formed and protruding forward from the root portion; a locking portion and a guiding portion are respectively formed and arranged adjacent to each other at the end of the upper side arm; the retaining device comprises a connecting section linking first and second vertical walls; the first and second vertical walls are respectively located at inner side of the lower side wall and outer side of the upper side wall with the connecting section sandwiched therebetween; a solder portion extends from a bottom lateral edge of the first vertical wall; a buckling piece and a guiding piece respectively extend from top lateral edge of the second vertical wall and bend downward to attach to the locking portion and guiding portion of the arm.