A card edge connector includes a longitudinal insulating housing including two long walls and a bottom wall connecting with the long wall and defining a card slot in a longitudinal direction among the long walls and the bottom wall, two rows of contact arranged in the long walls respectively. Each contact includes a retaining portion, a spring portion extending from the retaining portion and leg portion extending from the retaining portion and out of the insulating housing. The spring portions define contacting portions projecting into the card slot. Each contact is formed by directly punching out from a metal plate, the retaining portions define an outer edge and inner edge interfered with the insulating housing and two opposite plane faces connecting with the outer and inner edge and disposed perpendicular to the longitudinal direction.