QSFP-100G-LR4-I — QSFP28 100 Gbps

The QSFP-100G-LR4-I is a Cisco QSFP28 100 Gbps module compliant with the IEEE 100GBASE-LR4 standard, providing long-distance links of 10 km over single-mode fiber via an LC (UPC) connector. Its extended temperature range of -40 to +85 °C gives it industrial-grade ruggedness rarely found in this category, qualifying it for environments without climate control, outdoor installations, or locations subject to extreme thermal variations. It uses four multiplexed wavelengths in LR4 transmission.

With thermal tolerance from -40 to +85 °C, the QSFP-100G-LR4-I stands apart from standard commercial versions and targets 100G deployments in industrial, railway, or outdoor environments where extreme temperatures rule out conventional transceivers. It is also suitable for datacenters with limited cooling that require 10 km of reach over SMF. Genuine Cisco hardware, manufacturer warranty.