Nokia 3AL82074AA QSFP28 100GBASE-LR4 transceiver enables a 100 Gigabit Ethernet link over single-mode fiber in the QSFP28 form factor. It supports up to 10 km on SMF with LR4 optics and is described as a single-rate 100G module. This Nokia transceiver is typically used to connect switches or routers over longer distances in data centers or enterprise networks that require high-bandwidth fiber links.
