Electrical connector having improved LED

An electrical connector includes: an insulative housing including a mating face, a mating cavity extending through the mating face in a front-to-rear direction, and a pair of light receiving slots situated above the mating cavity and extending through the mating face in the front-to-rear direction; a pair of light emitting diodes (LEDs) each mounted in a corresponding light receiving slot, each LED having a lighting portion and a pair of leads extending rearwardly from the lighting portion; and an adapting terminal module including an insulative body mounted on a rear side of the insulative housing and four adapting terminals retained to the insulative body, each adapting terminal having a cooperating portion interference fit with the lead; wherein the cooperating portion is resiliently connected with the lead of the LED, the insulative body includes a retaining post, and the lead is retained between the retaining post and the cooperating portion.