D-Link 52-Port Gigabit Smart Managed Stackable PoE+ Switch with 44 PoE+ 1000Base-T - 4 PoE+ 2.5GBase-T and 4 10Gb Ports

The DGS-1520 Series brings reliable, yet affordable, Gigabit connectivity with four 10-Gigabit ports (two 10G Base-T and two 10G SFP+) for high-speed uplink or stacking. Boost your network performance, simplify your network infrastructure, improve bandwidth and reduce cabling complexity.
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
Advanced Layer 2 and Layer 3 features