Abstract: A socket assembly includes a connecting base, comprising a signal port and a shielding structure. The shielding structure is disposed around a peripheral edge of the signal port. The plug assembly includes a connecting head. The connecting head includes a signal terminal and a ground component. The signal terminal and the ground component are disposed side by side. When the plug assembly is fixedly connected to the socket assembly, each connecting head extends into one connecting base, the signal terminal is conducted to the signal port, and the ground component is bonded to the shielding structure. The shielding structure of the connector is disposed around peripheral edges of the signal terminal and the signal port, and forms bonding with the ground component. This may effectively prevent a phenomenon of signal current return, avoids impact of crosstalk resonance, and improves signal transmission integrity of the connector.

Abstract: An expansion card includes a circuit board, a connector component, and a plurality of cables. The connector component includes a first connector and a second connector that are disposed on the circuit board, where the first connector and the second connector are fastened together, and the first connector is configured to be connected to a plug-in card. One end of each of the plurality of cables is separately welded to terminals of the first connector and the second connector, and the other end of the cables is configured to be electrically connected to a first pairing connector and a second pairing connector of a mainboard.

Abstract: A socket assembly includes a connecting base, comprising a signal port and a shielding structure. The shielding structure is disposed around a peripheral edge of the signal port. The plug assembly includes a connecting head. The connecting head includes a signal terminal and a ground component. The signal terminal and the ground component are disposed side by side. When the plug assembly is fixedly connected to the socket assembly, each connecting head extends into one connecting base, the signal terminal is conducted to the signal port, and the ground component is bonded to the shielding structure. In this application, the shielding structure of the connector is disposed around peripheral edges of the signal terminal and the signal port, and forms bonding with the ground component. This may effectively prevent a phenomenon of signal current return, avoids impact of crosstalk resonance, and improves signal transmission integrity of the connector.