Description Cisco QSFP-100G-ER4L-X Compatible is a 100GEBASE-ER4 QSFP28 module for reaches of 30km (no FEC) or 40km (with FEC) over single-mode fiber. Operating at 1310nm with duplex LC connectors, it includes full DOM support for extended reach link management. This transceiver is optimized for high-reliability 100GbE transport in regional and metropolitan network backbones.
