a pair of d shaped guiding holes at the lateral sides thereof the body portion 120 forms a plurality of projection 121 at the lateral sides adjacent to the mating portion 13 the mounting portion 110 defines a rectangular depression 112 the body portion 120 defines a plurality of locking portion 111 adjacent to the mounting portion 110 a pair of retention posts 113 extend downwardly and exposed to the mounting portion 110 the plurality of contacts 30 are received in the passageways 151 of the insulative housing 10 each contact comprises a mating section 31 a retention section 32 extending downwardly from the mating section 31 a connecting section 33 bent outwardly from the retention section 32 a mounting section 35 extending downwardly from the connecting section 33 a first flexible portion 36 extending downwardly from the mounting section 35 a bent bight portion 38 bent inwardly from the mounting section 35 and exposed to the bottom surface of pcb and a second flexible portion 37 extending upwardly from the bent portion 38 each retention section 32 forms a protrusion 34 at the lateral side for being securely received in the passageway 151 of the insulative housing 10 in order to enlarge the distance between the contacts 30 the bending direction and length are not the same.