A socket connector comprises an insulating base receiving a plurality of contacts, a movable frame assembled to the insulating base, at least one latch device pivotally assembled to the insulating base, and at least one actuating member corresponding to the latch device and retained on a sidewall of the movable frame. The at least one actuating member includes a driving portion disposed at inner edge of the sidewall of the movable frame and extending downwardly. The movable frame is able to move up and down relative to the insulating base. Each latch device includes a latching member having a pressing portion with a cuneiform outside surface. When the actuating member moves up and down together with the movable frame, the driving portion of the actuating member pushes the cuneiform outside surface of the pressing portion of the latch device to shift between a closed position and an opened position.