100G QSFP28 LR4 optical transceiver modules support 100G Ethernet and OTN OTU4 , suitable for data center and telecom links up to 10km or 20km over single mode fiber. The 100G QSFP28 LR4 modules operate at four LWDM (short for LAN-WDM) wavelengths of 1295.56nm, 1300.05nm, 1304.58nm and 1309.14nm.

100G QSFP28 LR4 DML LWDM4 10km Transceiver