Mini Media Converter 10/100/1000Base-T RJ45 to 1000Base-X SFP are network devices that allow to connect different types of media to each other. While connecting copper and fiber networks remains their main application, Media Converters can also link two multimode networks or connect multimode to single-mode fiber link to extend links over greater distances. Media Converters are the ideal solution for converting and extending multiple types of data signals across your network.