ProSAFE 24 Port Gigabit Smart Switch. GS716T, GS724T and GS748T comes with a comprehensive set of features, such as access control lists (ACL), 802.1x port authentication, enhanced QoS, rate limiting and IGMP snooping among others to provide a small and medium-sized business with a network that is geared for growth while ensuring performance and reliability.if not available use GS324T100NAS