High Port Density and Flexible Fast Ethernet Connectivity The JetNet 4518 is equipped with 16 100M Fast Ethernet plus 2 Fast Ethernet RJ-45/SFP combo ports and therefore can be used in networks requiring high port density. Each of the two combo ports combines one Small Form factor Pluggable (SFP) socket for 100Mbps multi-mode or single-mode transceiver, as well as one RJ-45 copper port in 10Mbps full duplex, 100Mbps half/full duplex link mode. The switch w...