Switch node and cabinet server

The embodiment of the invention discloses a switch node and a cabinet server. The switch node comprises a machine frame, a plurality of sub-nodes, a power interface, an adapter plate and a liquid cooling joint assembly, each child node comprises a child frame body, a circuit board, a power device arranged on the circuit board, and a cold plate which is in contact with the power device for heat exchange; the sub-frame body of each sub-node is fixed on the cabinet; the power interface is electrically connected with each sub-node through the adapter plate, and each sub-node communicates with the outside through the adapter plate; the liquid cooling connector assembly comprises a liquid inlet used for inputting a liquid working medium and a liquid outlet used for outputting the liquid working medium, and the cold plate of each child node is communicated between the liquid inlet and the liquid outlet of the liquid cooling connector assembly. Through the setting, the sub-nodes with corresponding functions can be co