TP-Link T1600G-52TS (TL-SG2452) JetStream 48-Port Gigabit Smart Switch with 4 SFP Slots 104Gbps L2+ Feature Gigabit Ethernet connections on all ports provide full speed of data transferring L2+ Feature——Static Routing, helps route internal traffic for more efficient use of network resources Integrated security strategy including 802.1Q VLAN, Port Security and Storm control help protect LAN area investment L2/L3/L4 QoS and IGMP snooping optimize voice and video applications IPv6 support with dual IPv4/IPv6 stack, MLD snooping, IPv6 neighbor discovery WEB/CLI managed modes, SNMP, RMON and Dual Image bring abundant management features HARDWARE FEATURES Standards and Protocols IEEE 802.3i,IEEE 802.3u,IEEE 802.3ab, IEEE802.3z,IEEE 802.3x,IEEE 802.1d, IEEE 802.1s,IEEE 802.1w,IEEE 802.1q,IEEE 802.1p Interface 48 10/100/1000Mbps RJ45 Ports (Auto Negotiation/Auto MDI/MDIX) 4 Gigabit SFP Slots Network Media 10BASE-T: UTP category 3, 4, 5 cable (maximum 100m) 100BASE-TX/1000Base-T: UTP category 5, 5e or above cable (maximum 100m) 1000BASE-X: MMF, SMF Fan Quantity Fanless Power Supply 100~240VAC, 50/60Hz Power Consumption Maximum: 32.8W (220V/50Hz) Dimensions ( W x D x H ) 17.3*8.7*1.7 in.(440*220*44 mm) PERFORMANCE Bandwidth/Backplane 104Gbps MAC Address Table 16k Packet Buffer Memory 77.4Mpps Jumbo Frame 9216 Bytes