Patent attributes
An electrical connector (100) includes a middle board (4) defining a plurality of receiving holes (41, 42), a first insulative housing (1) mounted on one side of the middle board and defining a first receiving room (13), and a number of contacts (3) mounted on the first insulative housing. The contacts include a number of signal contacts (S) and a number of grounding contacts (G). Each of contacts includes a first mating portion (31), a second mating portion (32), and a middle portion (33) between the first and the second mating portions. The middle portions extend beyond the first insulative housing and are received in the receiving holes. Each of the middle portions of the signal contacts is solid. Each of the middle portions of the grounding contacts has a through hole (331) and has an outer profile wider than that of middle portion of the signal contact.