An electrical connector includes an insulative housing retaining a plurality of contacts therein and surrounded by a metallic seat. A clip includes a frame with corresponding four walls to commonly form a receiving cavity to receive the electronic package therein, and each wall forms a pressing section to downwardly press an upward surface of the electronic package. A pair of latches are formed on a lower side of the frame to cooperate with the pressing sections of the walls to retain electronic package within the receiving cavity to be wholly a sub-assembly for being commonly received within the electrical connector. The clip includes a releasing handle to actuate the corresponding latch, and the releasing handle is positioned in an opening of the seat and intimately above the printed circuit board to function as a foolproof mechanism for loading the electronic package in a right orientation.