RJ45 SFP module, also known as Copper SFP, compliant with SFP Multi-Source Agreement(MSA). We have 1000Base-T, 10/100/1000Base-T and 10GBase-T. It use an integrated RJ-45 connector with transformer and PHY IC. For 1G link length is up to 100m over four pair Category 5 UTP cabling, 10G Copper SFP+ transmission distance is up to 30m/80m over Cat6, Cat7 cabling. Copper SFP applications include: Switch to switch SerDes or SGMII interface, Switched backplane application, and Media Converter.