Finisar's FTL410QL1C QSFP+ "Lite" transceiver modules are designed for use in up to 40 Gigabit per second links over multimode fiber. They are compliant with the QSFP+ MSA. Digital diagnostics functions are available via an I2C interface, as specified by the QSFP+ MSA. The transceiver is RoHS-6 compliant and lead-free per Directive 2002/95/EC , and Finisar Application Note AN-2038 . For an IEEE 40GBASE-SR4 compliant version of the module, see Finisar part number FTL410QE1C.