US Patent 7628658 Plug connector

A plug connector includes an insulating housing and a plurality of contacts received in the insulating housing. The insulating housing has a base body and a tongue portion extending rearward from the base body. The tongue portion has a top portion and a bottom portion. Each of the contacts has a substantially U-shaped contacting portion which includes a first contacting branch, a second contacting branch substantially parallel to the first contacting branch and a connecting portion connected one end of the first and second contacting branches together. The first and the second contacting branches of the contacts are respectively exposed at the top and bottom portions of the tongue portion for both electrically contacting terminals of a complementary receptacle connector.