Cisco QSFP-100G-LR4-S compatible 100GBASE-LR4 QSFP28 transceiver with LC duplex connection according to MSA standards from BlueOptics. The Cisco QSFP-100G-LR4-S compatible 100GBASE-LR4 LC Duplex QSFP28 has a receive function (receiver with CWDM) and a transmit function (transmitter with CWDM) for the transmission of optical signals via single-mode fiber, taking the respective transmission protocol into account. This Cisco QSFP-100G-LR4-S compatible 100GBASE-LR4 LC Duplex QSFP28 is suitable for use in all common hardware platforms (such as switches, routers, storage systems, load balancers, measuring devices, etc.) that also support the original Cisco QSFP -100G-LR4-S 100GBASE-LR4 LC Duplex QSFP28 officially support. Each Cisco QSFP-100G-LR4-S compatible 100GBASE-LR4 LC Duplex QSFP28 supports Ethernet, Fiber Channel over Ethernet or SDH/SONET high-speed applications of up to 100G per second.