LAN ports: 4x port SFP - Uplink 10/100/1000 Mb/s, 24x RJ45 - 10/100/1000 Base-TX + PoE (802.3af/at) ; Transmission speed: Ethernet - 10 Mbps Fast Ethernet - 100 Mbps Gigabit Ethernet - 1000 Mbps ; Maximal total power: 250 W ;