Linksys SLM248G 48-port 10/100 + 2-port 10/100/1000 Gigabit Smart Switch with 2 Combo SFPs Easy-to-use Web browser interface makes installation quick and effortless Grow your network with options like Link Aggregation, Spanning Tree and Portfast 802.1X port authentication and MAC-based filtering brings network security down to the switch port level Basic QoS enables the network to be used for networked applications including voice, video and data storage