Patent ID: 8308513

Claim:
An electrical connector adapted for soldering onto a printed circuit board comprising: an insulative housing defining a retaining section and a mating tongue projecting beyond the retaining section perpendicularly, a plurality of terminal grooves defined on the mating tongue and extending along a front-to-rear direction, a plurality of positioning slots defined on the retaining section and extending along a vertical direction perpendicular to the front-to-rear direction and in communication with the terminal grooves respectively; and a plurality of contacts, each comprising a contact portion secured in the terminal groove on the mating tongue and a solder tail secured in the positioning slot on the retaining section; wherein said contacts are divided into signal contacts and grounding contacts under condition that solder tails of said signal contacts and grounding contacts are separately located at different rows alone in the front-to-rear direction; wherein said solder tails are arranged into four rows along the front-to-rear direction, a first row with signal contacts, a second row with grounding contacts, a third row with signal contacts, and a fourth row with grounding contact.