arranged a plurality of terminals therein a cover moveable assembly on the base and a driver mechanism disposed on the insulating base and driving the cover to slide relatively to the insulating base the driver at least comprises a hollow driver member and the driver member is rotated by an exterior force application_number US 98089207 A description reference will now be made to the drawing figures to describe a preferred embodiment of the present invention in detail referring to fig1 and 2 a zif connector 1 in accordance with the present invention is adapted for electrically connecting an ic package such as a cpu to a printed circuit board pcb the zif connector 1 comprises an insulating base 10 an insulating cover 11 movable assembled on the insulating base 10 and a driver mechanism locating between the insulating base 10 and the cover 11 as shown in fig2 the insulating base 10 has a rectangular shape and comprises a base portion 101 with a plurality of terminals not shown received therein and a supporting portion 102 extending forward from one end of the base portion 101 a sinking receiving recess 1021 in a rectangular shape is defined in the supporting portion 102 with a plurality of slots 1022 defined therein the cover 11 comprises a main body 111 and a head portion 112 extending from one end of the main body 111 the main body 111 and the head portion 112 are respectively cooperating with the base portion 101 and supporting portion 102 of the insulating base and a space is defined between the head portion 112 and the supporting portion 102 to receive the driver mechanism the main body 111 defines a plurality of holes corresponding.