Finisar’s FTL4P1QE1C QSFP+ transceiver modules are designed for use in high density 10 Gigabit Ethernet links over single mode fiber. They are compliant with the QSFP+ MSA1,2, IEEE 802.3ae 10GBASE-LR/LW3, and OTN data rates OTU2, OTU1e, and OTU2e per the ITU4. Digital diagnostics functions are available via an I2C interface, as specified by the QSFP+ MSA. The transceiver is RoHS compliant per Directive 2011/65/EU5 and Finisar Application Note AN-20386.