D-LINK DGS-1210-52, Gigabit Smart Switch with 48 10/100/1000Base-T ports and 4 Gigabit MiniGBIC (SFP) ports, 802.3x Flow Control, 802.3ad Link Aggregation, 802.1Q VLAN, 802.1p Priority Queues, Port mirroring, Jumbo Frame support, 802.1D STP, ACL, LLDP, Cable Diagnostics, Auto Surveillance VLAN, Auto Voice VLAN | D-Link | 24 month(s)