Three-in-one connector set

A three-in-one connector set, comprising:

• a substrate, said substrate having a circuit board, said circuit board having a wave filter;
• a first connector, said first connector having a first shell, a first set of terminals, and a set of external terminals, said first shell being deposed on said circuit board and having a socket, said first set of terminals being located in said socket and being electrically connected with said circuit board, said set of external terminals being electrically connected with said circuit board and being connected with said substrate, said first connector being an RJ45 (Registered Jack 45) network connector;
• a second connector together with a third connector, said second connector together with said third connector comprising a second shell and a second set of terminals together with a third set of terminals, aid second shell being deposed on said circuit board and having two sockets, said second set of terminals together with said third set of terminals being separately located in said two sockets and being connected with said circuit board and having an end connected with said substrate, said second set of terminals together with said third set of terminals being separately a universal serial bus (USB) connector and an external serial advanced technology attachment (eSATA) connector;
• and
• a metal shell, said metal shell being coated at outside of said substrate, said first connector, said second connector and said third connector, said metal shell having an end surface having openings separately corresponding to said sockets of said first connector, said second connector and said third connector.