FN-40G-4X10GLR Fortinet Compatible 40G LR 10km SMF Transceiver

The FN-40G-4X10GLR is a 40G optical transceiver compatible with Fortinet platforms. Plug-and-play, no configuration required.

• Data Rate: 40G
• Protocol: LR Breakout
• Fiber Type: SMF
• Reach: 10km
• Connector: MPO to 4x LC Duplex
• OEM Equivalent: FN-40G-4X10GLR

Compatibility: Documented OEM compatibility (Fortinet published compatibility documentation): this module is accepted in 40G QSFP+ ports on the FortiGate 1100E Series, FortiGate 1800F Series, FortiGate 2600F Series, FortiGate 3400E Series, FortiGate 3500F Series, FortiGate 4400F Series, FortiSwitch 1024E, FortiSwitch 1048G, FortiSwitch 2048F, and FortiSwitch 3032G. This module follows Fortinet's published compatibility matrix; for your exact line card or OS release, email 10.4@tenfouroptics.com and we'll confirm fit.

Works with: 4× 10G LR (SMF) optics at the far end — this module runs 40G as four 10G lanes in breakout mode.

Tested & Proven: Every TenFour Optics part is coded, tested, and verified before shipment — see Tested & Proven.

OEM-compatible and MSA-compliant. Manufactured to MSA specifications following ISO-certified processes. Class 1 laser certified, RoHS compliant. Digital Diagnostic Monitoring (DDM/DOM) supported. Every module is tested for traffic conformity per supported layer 2/3 protocols, DOM threshold verification, EEPROM/MSA value verification, serial number verification, and optical cleanliness before shipment.

Backed by the GreenLights4Life® Limited Lifetime Replacement Warranty. In stock and ships same or next business day. Trusted by network engineers and procurement teams across North America for 10 years.