Next Generation Layer 3 Stackable Smart Managed SwitchA new generation of Layer 3 stackable Smart Managed switches to aggregate your Gigabit network with 10G ports for uplink or stacking.High Availability and Flexibility 24 or 48 x 10/100/1000Base-T ports 20 or 44 x 10/100/1000Base-T PoE and 4 x 2.5GBase-T PoE ports 2 x 10GBase-T and 2 x SFP+ uplink ports High Bandwidth Stacking Physical Stacking of up to 8 units 2 x 10GBase-T and/or 2 x SFP+ 80 Gbps physical stacking bandwidth Advanced L2 features RSPAN Selective Q-in-Q Advanced L3 features IGMP v1/v2/v3 MLD v1/v2 PIM-SM/DM/SSM Static Route RIP/RIPng OSPF Reliability and Resiliency Ethernet Ring Protection Switching (ERPS) Virtual Router Redundancy Protocol (VRRP) Redundant Power Supply (RPS) support Management, Provisioning and Automation D-View 7 D-Link Network Assistant (DNA) Zero Touch Provisioning (ZTP)