An electrical connector includes an insulating housing having a front surface concaved rearward to define a receiving chamber with a tongue board therein. Electrical terminals are disposed in the tongue board and elastically stretch into the receiving chamber. A frame-shaped holding shell is mounted in the receiving chamber. A shielding cover adapted for being connected to ground and punched from a metal board has a base board with a window being opened therein and a plurality of contact strips being formed and apart arranged to periphery edges of the base board. The base board is covered onto the front surface of the insulating housing with the window being communicated with the receiving chamber. The contact strips stretch freely outside the insulating housing. A shielding shell is put around the insulating housing and electrically connected with the shielding cover.