Additional Port Activation feature enables upgrade from 16 to 24 or 32 ports. The base B32 model activates the first sixteen ports (0 to 15). You may optionally purchase port activation for ports sixteen to twenty-three (first eight port increment), and ports twenty-four to thirty-one (second eight port increment). An affordable sixteen-port activation bundle is available for plant order only, to provide the B32 full thirty-two ports enabled from the factory. Port activation features do not include fiber optic transceivers.