TP-LINK TL-SF1048, Protocols IEEE 802.3i, IEEE 802.3u, IEEE 802.3x, Interface 48 10/100Mbps RJ45 Ports (Auto Negotiation/Auto MDI/MDIX), Network 10BASE-T: UTP category 3, 4, 5 cable (maximum 100m), 100BASE-TX: UTP category 5, 5e or above cable (maximum 100m), Power 100-240VAC, 50/60Hz, Max Heat Dissipation 33.78BTU/h, Capacity 9.6Gbps, Forwarding 7.14Mpps, MAC Address Table 8K. The TL-SF1048 10/100Mbps Switch is designed to meet the needs of the most demanding workgroup and departmental connectivity requirements. All 48 ports support auto MDI/MDIX.