Electrical connector with improved contacting portions

A plug electrical connector comprising:

• a housing comprising a rear base and a front mating tongue in a mating direction, the front mating tongue defining a first face and a second face opposite to the first face, the first side defining a rib thereby the first face being divided to a first mating face, a third mating face and a second mating face on the rib and between the first and third mating face, the second face being defined as a fourth mating face;
• a plurality of terminals arranged in the housing in a lateral direction perpendicular to the housing and comprising plate portions exposed upon the mating tongue and mounting legs outside the housing;
• the terminals divided to four groups, the plate portions of a first group of terminals exposed upon the first mating face, the plate portions of a second group of terminals exposed upon the second mating face, the plate portions of a third group of terminals exposed upon the third mating face, the plate portions of a fourth group of terminals exposed upon the fourth mating face;
• wherein each of the first and second groups of terminals comprises grounding terminals and differential signal pairs, the plate portions of the differential signal pairs of the first and second groups have a length equal to 3.2 mm.