An electrical connector includes a housing defining a front and a rear and a first group of contacts. The housing includes a rear base and a front mating tongue defining a first face and a second face opposite to the first face. The first group of contacts is held in the first face of the front mating tongue, the contacts include grounding contacts and signal contacts, each contact includes a retained portion retained in the housing, a contacting portion exposed upon the first face and a connecting leg. The contacting portions of the grounding contacts electrically connect with each other, the retained portions of the grounding contacts electrical connect with each other to reduce electrical length of the electrical connector.