TP-LINK T1600G-52TS(TL-SG2452) 48-port Pure-Gigabit Smart Switch, 48 10/100/1000Mbps RJ45 ports including 4gigabit SFP slots, Static Routing, Tag-based VLAN, STP/RSTP/MSTP, IGMP V1/V2/V3 Snooping, DHCP Filtering, 802.1P Qos, Rate Limiting, Voice VLAN, P