Gigabit Ethernet Switch with two10/100/1000M UTP port sand four fiber ports Or four 1000M SFP sockets. 2 RJ45 ports and 4 LC fiber ports or 4 SFP sockets. It can convert Optical Electric Ethernet signals between 10/100/1000M UTP ports and 1000M optical fiber ports and switch Ethernet signals between port and port.
eBay