An electrical connector (1) includes a housing (2) and conductive contacts (3) partially positioned in the housing. The housing has a base wall (20) and side wall (21). The top edge of the side wall has a thickness larger than other portion of the side wall. Each contact has a body portion (31) and a pair of cantilevered beams (32) extending from the body portion. A stabilizer (4) is assembled in the housing. The stabilizer provides a general flat planar surface (40) on a top and defines a number of cavities (41) exposed to the surface. The cantilevered beams extend through the cavities of the stabilizer and exposed partially outside the surface thereof.