D-Link DGS-1530-28, E

24 Ports Gigabit for downlink
4 Ports 10G SFP+ for uplink
6kV surge protection on all Gigabit Ethernet ports
Physical stacking up to 9 switches
Support Redundant Power Supply (RPS)
ZTP (Zero-Touch Provisioning)
Ethernet Ring Protection Switching (ERPS)
IEEE 802.1ag for Connectivity Fault Management
ITU-T Y.1731 for Delay Measurement Massages
Manage through the Nuclias Network Controller