A server cabinet includes a cabinet, a first slide rail, and a second slide rail. The cabinet includes a top surface, a bottom surface, a rear wall, two sidewalls, and two doors. The first slide rail is mounted on an inner surface of one of the sidewalls. The first slide rail has a first end and an opposite second end. The first slide rail defines a first slide groove. The first end is adjacent to the doors, and the second end is close to the rear wall. The second slide rail has a first and a second connection ends. The second slide rail defines a second slide groove. The first connection end is rotatably coupled to the first end so that the second slide rail is capable of rotating relative to the first slide rail to a position where the second slide rail aligns with the first slide rail.