28-Port 2.5G Layer 2 Standard Smart PoE Switch DMS-1250-28P 24 Ports 2.5GE PoE for downlink 4 Ports 10G SFP+ for uplink PoE IEEE802.3af/at/bt options, power budget 475W 6kV surge protection on all 2.5G ethernet ports Support LACP 802.3ad Link Aggregation Support Static Routing & Loopback Detection Support Spanning Tree Protocol(STP/RSTP/MSTP) AAA support for RADIUS/TACACS+ Support D-Link Safeguard Engine Manage through the Nuclias Network Controller
