The Cisco QSFP-100G-ER4L-S transceiver is designed for 100 Gigabit networks, with a cable distance of up to 40km using single-mode fiber. Operating at wavelengths of 1295nm, 1300nm, and others in the range allows for reliable communication over long distances.

The form factor of this transceiver is compact and easily fits into compatible 100G Cisco devices. Its high-quality construction and specifications ensure stable performance in network environments that require connectivity over extended ranges.

Cisco QSFP-100G-ER4L-S: 100GBASE QSFP Transceiver, 25-40KM reach over SMF, Duplex LC.