An electrical connector includes an insulative housing (3), a plurality of terminals (4) retained in the housing and a slider (5) moveably assembled to the housing. The terminal (4) has a first arm (42) and a second arm (43) both protruding into a mating room (34) defined by the insulative housing. The slider defines an urging portion (52) for driving a flexible printed circuit board engaging with the terminals when the slider moving to a closed position from an opened position. The urging portion has a first contacting surface (521) and a second contacting surface (522) at same side thereof. The first contacting surface is located closer to the first arm than the second contacting surface at a vertical direction. The second arm is located below the first contacting surface at said opened position and engaging with the second contacting surface at said closed position.