Electrical connector

An electrical connector, comprising:

• an electrically insulative holder member comprising a holder base and a tongue plate suspends in a front side of said holder base, said tongue plate defining an insertion chamber therein, at least one opening in a bottom side thereof in communication with said insertion chamber and five contact holes in a transverse line in a front side relative to said at least one opening;
• a signal module comprising a circuit board horizontally supported on said holder base of said electrically insulative holder member, said circuit board comprising a plurality of longitudinal terminal holes, a plurality of electrical contacts respectively disposed in said contact holes of said tongue plate, a plurality of via-holes arranged in two lines near a rear side thereof and a plurality of circuit lines, a plurality of metal contact terminals respectively mounted in said circuit board corresponding to said longitudinal terminal holes, each said metal contact terminal comprising a rear soldering end portion electrically soldered to one said circuit line, a front contact portion respectively positioned in a front end of one said longitudinal terminal hole and a suspension arm obliquely downwardly extending from said rear soldering end portion and terminating in said front contact portion below the associating longitudinal terminal hole, and a plurality of metal mounting terminals respectively soldered to said via-holes of said circuit board and inserted through the through holes of said holder base, said metal contact terminals being configured subject to USB 2.0 specification, said electrical contacts being configured to match with said metal contact terminals subject to USB 3.0 specification, said electrical contacts and the front contact portions of said metal contact terminals being respectively arranged in a respective line in a staggered manner, said metal contact terminals and said electrical contacts being respectively electrically connected to said via-holes by said circuit lines;
• and
• a metal shield surrounding said electrically insulative holder member and said signal module, said metal shield comprising a front receiving hole accommodating said circuit board and said tongue plate, and a rear accommodation chamber accommodating said electrically insulative holder member.