<span style="color: rgb(82, 82, 82); font-family: CiscoSans, Arial, sans-serif; font-size: 14px; background-color: rgb(255, 255, 255);"> QSFP100 LR4 Module supports link lengths of up to 10km over a standard pair of G.652 single-mode fiber with duplex LC connectors. It complies with the IEEE 100GBASE-LR4 specification, which does not employ the use of FEC. QSFP-100G-LR4-S supports 100GBase Ethernet rate.</span>