TP-Link T2600G-52TS(TL-SG3452), Protocols IEEE 802.3i, IEEE 802.3u, IEEE 802.3ab, IEEE802.3z, IEEE 802.3ad, IEEE 802.3x, IEEE 802.1d, IEEE 802.1s, IEEE 802.1w, IEEE 802.1q, IEEE 802.1x, IEEE 802.1p, Interface 48 10/100/1000Mbps RJ45 Ports, (Auto Negotiation/Auto MDI/MDIX), 4 1000Mbps SFP Slots, 1 RJ45 Console Port 1 Micro-USB Console Port, Power Supply 100~240VAC, 50/60Hz, Rack Mountable, Max Heat Dissipation114.37 BTU/h, Bandwidth/Backplane 104Gbps, Jumbo Frame 9216 Bytes. TP-Link Tl-sg3452 T2600g-52ts Jetstream 48-port Gigabit L2+ Managed Switch With 4 Sfp Slots Static Routing L2/l3/l4 Qos Igmp Sno