A stacked electrical connector (1) includes an insulative housing (2) and a number of contacts (3) retained in the insulative housing (2). The insulative housing (2) includes a first housing (21) and a second housing (22) arranged in an up-to-down direction. The first housing (21) defining a number of inserting ports (213) recessed from a front end thereof. The second housing (22) defines a receiving space (224) to receive a standard USB 2.0 B type plug. The contacts (3) include a number of first contacts (31) retained in the first housing (21) and a number of second contacts (32) retained in the second housing (22). Each first contact (31) has a first contact portion (311) extending into the inserting port (213). Each second contact (32) has a second contact portion (321) and a second soldering portion (324) being arranged in a row in a level direction.