Compatible with Cisco QSFP-100G-LR4-S optical transceiver module is designed with duplex LC connectors, reaching a link up to 10km over single-mode fiber (SMF). QSFPTEK manufactured 100GBASE-LR4 QSFP28 transceiver module is compliant with IEEE 802.3 ba 100GBASE-LR4, QSFP28 MSA standard. Besides, DDM (digital diagnostics monitoring) function is supported on the 100G fiber optic transceiver to achieve real-time operating parameters monitoring. With these features, this 100G QSFP28 transceiver is widely applied in 100G telecom connections, data centers, high-performance computing networks, enterprise core and distribution layers, campus networks, etc.