Patent attributes
A paddle card includes a circuit board, a pad group and first to fourth shielding planes. The circuit board has an upper surface and a lower surface opposite to each other. The pad group is adapted to connect wires of a cable or terminals of a plug, and includes a pair of upper differential pads on the upper surface and a pair of lower differential pads on the lower surface. The pair of upper differential pads is respectively configured corresponding to the pair of lower differential pads in an up and down manner. The first to fourth shielding planes are stacked at intervals between the upper and lower surfaces in sequence. An orthogonal projection of a second opening of the second shielding plane on a geometric plane that a pair of third openings of the third shielding plane is located in is separate from the pair of third openings.