An electrical connector includes an insulative housing, a plurality of contacts assembled in the housing, a plurality of cylindrical mating ports located on and forwardly extending from a front face of the housing, and a plurality of LEDs (Light Emitting Diodes) disposed in the housing behind the front face thereof. The mating port includes a majority part and a minority part engaged with each other wherein the majority part has the material same with or similar to that of the housing and is spaced away from the LED while the minority part is essentially translucent or transparent for light transmission/guiding and intimately confronts the LED.