D-Link 28-Port 10Gb Fiber Layer 3 Stackable Managed Switch (DXS-3130-32S) | 28-Port 10GE SFP+ Ports, 4×25GbE SFP28 Uplinks, 9-Unit/200Gbps Stacking, Surge Protection, Rack-Mountable, Follows NDAA/TAA, Lifetime Warranty

28 Ports 10G/multi-Gigabit for downlink 4 Ports 10/25G SFP28 for uplink Physical stack of up to 9 units via four 25G ports 200 Gbps per-device physical stacking bandwidth Ethernet Ring Protection Switching (ERPS) RIP/RIPng, OSPFv2/v3, VRRP for L3 routing Support 802.1X and Web/MAC-based access control IEEE 802.1ag for Connectivity Fault Management Green features for reduced power consumption Manage through the Nuclias Network Controller