Description Cisco QSFP-100G-ER4L-X Compatible is a 100GEBASE-ER4 QSFP28 module supporting 30km without FEC and up to 40km with FEC over single-mode fiber. Operating at 1310nm with duplex LC connectors, it features comprehensive DOM support for monitoring signal stability over long distances. This transceiver is engineered for high-availability 100GbE transport in demanding carrier and regional fiber backbone applications.
