FN-400G-SR8 Fortinet Compatible 400G QSFP-DD SR8 100m MMF Transceiver

The FN-400G-SR8 is a 400G QSFP-DD optical transceiver compatible with Fortinet platforms. Plug-and-play, no configuration required.

• Form Factor: QSFP-DD
• Data Rate: 400G
• Protocol: SR8
• Fiber Type: MMF
• Reach: 100m
• Connector: MPO-16
• OEM Equivalent: FN-400G-SR8

Compatibility: Documented OEM compatibility (Fortinet published compatibility documentation): this module is accepted in 400G QSFP-DD ports on the FortiGate 3200F Series, FortiGate 3700F Series, FortiGate 4800F Series, and FortiGate 7121F. 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.

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 items ship same or next business day — contact 10.4@tenfouroptics.com to confirm availability and lead time.