A server cabinet includes a housing configured to hold plural servers therein, and a ventilation system provided at an open side of the housing. The ventilation system includes an air supply conduit through which airflow can enter other parts of the ventilation system, an air distribution conduit in communication with the air supply conduit, and plural air exhaust conduits. Each of the air exhaust conduits is rotatably connected to and communicates with the air distribution conduit. Each air exhaust conduit defines an air outlet therein. The air exhaust conduit is rotatable with respect to an axis of the air distribution conduit in order that the air exhaust conduit can directly face a corresponding server, and the air exhaust conduit is also rotatable about its own axis in order that the air outlet can directly face the corresponding server.