FN-TRAN-QSFPDD-LR4 — 400GE QSFPDD transceiver module, 10km range, SMF, for systems with QSFP-DD slots

The FN-TRAN-QSFPDD-LR4 from Fortinet is a 400GE QSFP-DD transceiver compliant with the 400GBASE-LR4 standard, capable of transmitting 400 Gbps over single-mode fiber (SMF) via a duplex LC connector up to 10 km. It represents the long-range option in the Fortinet QSFP-DD lineup, covering metropolitan or inter-datacenter interconnects without amplification. Operating temperature range: 0 to 70 °C.

This module is designed for network architectures requiring 400 Gbps links over long distances, such as connections between datacenters on the same campus or between nearby urban sites. It installs in any Fortinet equipment with QSFP-DD slots and is clearly differentiated from the FN-TRAN-QSFPDD-FR4 (2 km) by its 10 km reach. Genuine Fortinet hardware, manufacturer warranty.