SGMII SFP is designed for 100BASE-FX applications, with build-in PHY device supporting SGMII interface. The standard serial ID information Compatible with SFP MSA describes the transceiver¡¯s capabilities, standard interfaces, manufacturer and other information. The host equipment can access this information via the 2-wire serial CMOS EEPROM protocol. For further information, please refer to SFP Multi-Source Agreement (MSA). SGMI SFP transceivers are 100BASE-FX Small Form-Factor Pluggable (SFP) Fast Ethernet Interface Converter on Gigabit SFP Ports.