is flexed in a direction perpendicular to the plugging direction into the terminal groove 218 of the female insulative housing 22 it has a v shaped contact portion 244 to facilitate contact with the male terminal 34 of the male connector 3 the female metal shell 26 is made by bending and cutting a thin metal sheet so as to cover the upper face 224 of the rear section 220 of the female insulative housing 22 down to the rear portions of the screw holes 221 projecting to the board 41 to provide an extended wall 228 which connects the female metal shell 26 to a ground of the board 41 the female metal shell 26 does not cover the upper face of the front portion 225 of the rear section 220 so that when the metal shutter 28 is opened it is prevented to abut against the metal shutter 28 the metal shutter 28 is rotatably provided above the opened upper face 212 of the female insulative housing 22 so as to cover the female terminals 24 the rotary motion or open close operation of the metal shutter 28 is made by the contact with the male connector 3 to facilitate the open operation by the male connector 3 the front edge 280 of the metal shutter 280 is curved upwardly a pair of opposite sides of the metal shutter 28 are bent downward to provide a pair of pivot arms 281 which cover the rear portions of the guide walls 213 the metal shutter 28 is rotatably attached to the female insulative housing 22 by fitting the pivot arms 281 over the.