An electrical connector includes: an insulative housing; a single row of contacts secured to the insulative housing and each having a soldering tail; and a shielding shell enclosing the insulative housing and having an annular part and a pair of soldering portions; wherein the shielding shell annular part is seamless; and the soldering tails of the single row of contacts are arranged alternately in two rows within an outer profile of the shielding shell annular part.