48/24-port 10/100 Stackable Managed Layer 2 Switch with 2 GbE RJ45 ports and 2 GbE RJ45/SFP combo portsSS2R48G4i/SS2R24G4i is a managed, high performance, cost-effective layer 2 switch that meets all IEEE 802.3/u/ab/z Gigabit, Fast Ethernet specifications. Equipped with 48/24 x 10/100 ports, 2 Gigabit RJ45 ports, and 2 Gigabit RJ45/SFP combo ports. The switch supports Enhanced 802.1x Authentication, user-based dynamic VLAN. The advanced QoS, ensures voice/data/video are properly classified and prioritized throughout the network. The switch supports SNMP, in-band and out-band management, CLI and WEB interface, RMON, Security IP function. IP stacking allows you to manage up to 36 units across your network with one IP address to form a solid backbone solution.