Finisar's FTLC1154RDPL QSFP28 transceiver modules are designed for use in 100 Gigabit Ethernet links on up to 10km of single mode fiber. They are compliant with the QSFP28 MSA1 , IEEE 802.3ba 100GBASE-LR42 and IEEE 802.3bm CAUI-4 3 . Digital diagnostic functions are available via the I2C interface, as specified by the QSFP28 MSA and Finisar Application Notes AN-21524 and AN-21535 . The optical transceiver is compliant per the RoHS-6 Directive 2011/65/EU 6 .