D-Link DGS-1520-28MP 28-Port PoE+ 370W Stackable Smart Managed Switch with 2x10G SFP+/Uplink Ports and 4x2.5G PoE+ Ports28 Port Gigabit Smart Managed Stackable PoE+ Layer 3 Switch with 20 PoE+ 1000Base T, 4 PoE+ 2. 5GBase T and 4 10Gb Ports DGS 1520 28MP High performance Layer 3 switch with 10Gig uplinks Physical stacking up to 8 switches Virtual stacking up to 32 switches 2 x 10GBase T and 2 x SFP+ uplink ports 4 x 2. 5GBase T PoE+ ports PoE and PoE+ support PoE budget 370W, upgradeable to 740W (with DPS 700) Redundant Power Supply support Advanced security features