Fortinet 100 GE QSFP28 Transceivers Long Range 100 GE QSFP28 Transceiver Module - FN-TRAN-QSFP28-LR

Fortinet FN-TRAN-QSFP28-LR 100GE QSFP28 Long Range Transceiver Module

Overview

The FN-TRAN-QSFP28-LR is Fortinet's 100 Gigabit Ethernet QSFP28 transceiver designed for long-range single-mode fiber links. It drops into QSFP28-capable FortiGate and FortiSwitch slots to extend 100GbE uplinks across campus backbones or data center inter-switch links where short-reach optics fall short. If you're running 100GbE spine-leaf fabric or need to connect a Fortinet core switch to a remote aggregation layer over single-mode fiber, this is the module to specify. For deployments building out high-density network switching infrastructure, pairing the right optic with the right port density matters — verify your switch's QSFP28 slot count before ordering.

Compatibility

The FN-TRAN-QSFP28-LR is designed for use in Fortinet platforms with QSFP28 form-factor slots. Compatible product families include FortiGate next-generation firewalls with 100GbE QSFP28 interfaces and FortiSwitch data center and aggregation models supporting QSFP28 uplinks. Confirm your specific FortiGate or FortiSwitch model's interface card and slot specification against Fortinet's transceiver compatibility matrix before deployment — not all QSFP28 slots on every chassis revision accept every optic variant. If you're also sourcing fiber patch cables for the run, match the connector type and fiber grade (OS2 single-mode for LR distances) to this module's requirements. For broader network transceiver selection across other form factors and speeds, compare against your switch vendor's supported optics list.

Installation Notes

Long-range QSFP28 optics operate over OS2 single-mode fiber. Verify the fiber plant end-to-end — any multimode segments, dirty connectors, or mismatched APC/UPC polish types will degrade link budget and cause intermittent errors at 100GbE line rates. Clean each LC connector before insertion. Hot-plug the module with the port disabled in software where the platform supports it, to avoid traffic disruption on adjacent ports sharing the same ASIC group.