Enterasys B2 48port 10 100 via RJ45 mit

48-Port L2 10 100 1000 Ethernet Switch This switch features 48 ports of 10/100/1000 connectivity, four uplink ports supporting SFP (Small Form-factor Pluggable) GBICs and two integrated stacking ports. Ports 45 thru 48 have the flexibility to be mapped as either 10/100/1000 ports or as optical Gigabit Ethernet ports with the installation of a fiber transceiver in the appropriate SFP socket.