This is a Copper Small Form pluggable (SFP) transceiver, which is based on SFP multi-sourcing agreement (MSA). They are compatible with the Gigabit Ethernet and 1000BASE-T standards as specified in IEEE Std 802.3. The 1000BASE-T physical layer IC (PHY) can be accessed via I2C, allowing access to all PHY settings and features. The SFP-T-GFE-PLU /SFP-T-GFE-PLUI is compatible with 1000BASE-X auto-negotiation.FEATURES Up to 1.25Gbps bi-directional data links RJ45 Max100m Fully metallic enclosure for low EMI Compact RJ-45 Connector assembly Hot-pluggable SFP footprint Low power dissipation Operating temperature: Refer to Ordering Info RoHS compliant and Lead Free Access to physical layer IC via 2-wire serial bus over CAT5 cable 10/100/1000BASE-T operation in host systems with SGMII interface   APPLICATIONS 1.25 Gigabit Ethernet   WARRANTY3-years limited warrantyTAA-approved SFPs available upon request, Contact us for more details.