D-LINK DGS-1510-28P, Gigabit Stackable SmartPro Switch with 24 10/100/1000Base-T PoE ports, 2 Gigabit SFP, 2 10G SFP+ ports, 802.3x Flow Control, 802.3ad Link Aggregation, 802.1Q VLAN, 802.1p Priority Queues, Port mirroring, Physical (up to 6 devices) and Virtual SIM (up to 32 devices) stacking, PoE Budget 193W, 802.3af, 802.3at support, Jumbo Frame support, 802.1D STP, ACL, LLDP, Cable Diagnostics, Auto Surveillance VLAN, Auto Voice VLAN,