D-link 28-Port Gigabit PoE+ Smart Switch including 4 SFP Ports; Power budget 370W; 24 x PoE+ 10/100/1000Mbps; 4 x SFP Auto-Negotiating Ports; Port 1-24 802.3at up to 30W; Advance power saving features; Half-/Full- Duplex, auto-negotiation, Auto MDI/MDIX;