ATOP APQPSR43CDM01 light module is designed for 40 billion m bit/SEC rate on parallel multimode optical fiber transmission, including four 10 g/s branch link. They conform to the QSFP + MSA, IEEE 802.3 ba 40 gbase - SR4 agreement and compatible with the IEEE 802.3 ae 10 gbase - the SR. This 40 g optical module conforms to the standard RoHS directive 2011/65 / EU, comply with RoHS certification standards and lead-free standards.