JetStream 52-Port Gigabit L3 Managed Switch, 48 Gigabit RJ45 Ports, 4 Combo Gigabit SFP Slots, 2 Integrated 10G SFP+ Slots, 2 Optional 10G SFP+ Slots, RJ45/Micro-USB Console Port, Management Port, USB Slot, Dual Removable Power Unit, 1U 19-inch Rack-mountable Steel Case, Static Routing/RIP/OSPF/ECMP/VRRP, True Physical Stacking Up to 8 Units, 802.1Q VLAN, QinQ, STP/RSTP/MSTP, PIM-SM/PIM-DM, IGMP, IGMP Snooping, QoS, 802.1x, Radius/Tacacs+ Authentication, ACL, LACP, CLI, SNMP, Dual Image/Configuration, IPv6