The TL-SL1351 Gigabit Switch provides 48 10/100M auto-negotiation RJ45 ports & 2 10/100/1000M auto-negotiation RJ45 ports, all RJ45 ports support auto-MDI/MDIX function, 1 SFP independence expansion slots supporting Mini GBIC. TL-SL1351 Gigabit Switch provides a cost-effective, high performance, non-disruptive, smooth evolution into 1000M solutions. The switch delivers superior performance with improving workgroup, network bandwidth, increasing network node, providing the greater flexibility, installation convenience. 48 10/100M RJ45 ports + 2 10/100/1000M RJ45 ports + 1 SFP Supports MAC address self-learning & auto MDI/MDIX Please note: networking components such as switches, routers & wireless devices require that speeds & standards be consistent throughout the network to gain optimum performance. To avoid compatibility clashes or for advice, please contact us on solutions@ebuyer.com.