A rack system includes a carried object, a first cable management arm, a second cable management arm and a supporting base. The carried object is mounted to the rack through a pair of slide rail assemblies. The first cable management arm is detachably connected to one of the slide rail assemblies. The second cable management arm is pivotally connected to the first cable management arm. The second cable management arm is detachably connected to the carried object. The supporting base is attached to the carried object and configured to support at least one of the first cable management arm and the second cable management arm.