Fortinet FortiGate 400G — End-of-Life & EOSL Dates
The Fortinet FortiGate 400G is a current next-generation firewall appliance. Fortinet has announced no end-of-sale or end-of-service-life for it; this page is updated when they do.
Fortinet FortiGate 400G is a current next-generation firewall; Fortinet has not published an end-of-service-life date. Track it so you catch the announcement early.
End of sale
Not published
Last date of support
Not announced
Part numbers
1
Current
no end-of-life announced by Fortinet
Why this score
- No end-of-life announced by the vendor — current, shipping product
- Vendor-published date, source-linked
- Category: next-generation firewall
Support-lifecycle timing and source confidence only. Higher means more runway. It is not a risk, safety or compliance rating. How it is calculated
Part number in this family
All 1 share the dates above. Find your exact part to confirm.
| Part number | Description | End of sale | Last support | Status |
|---|---|---|---|---|
| FortiGate-400G | next-generation firewall appliance | — | Not announced | No EOL announced |
Support outlook
No EOL announcedFortinet has not announced end-of-sale or end-of-service-life for the Fortinet FortiGate 400G, and nobody can tell you when it will. What can be shown is what Fortinet has actually done on the 831 of its products where both dates are published — in line with the 60-month norm — 98% of Fortinet's pairs land within 3 months of exactly 60.
This is Fortinet's published history on other products — not a prediction for the Fortinet FortiGate 400G. EOSL.ai publishes a lifecycle date for this model only when Fortinet does, and this page changes the day that happens. Every pair behind these figures comes from a Fortinet bulletin linked on that product's own page. How this is measured →
Options from here
The Fortinet FortiGate 400G is still supported. Options to plan around, in rough priority:
Current product, fully supported. Nothing to plan around.
Long runway ahead; fine for new deployments.
Stay on a supported software release.
We flag this page the moment the vendor announces end-of-life.
Independent and informational. EOSL.ai sells no hardware and no maintenance, and lists no paid placements. Third-party maintenance keeps unsupported gear in production past the OEM cutoff; whether it fits depends on the role the asset plays.
Fortinet FortiGate 400G — questions
Is the Fortinet FortiGate 400G end of life?
No. Fortinet has not announced end-of-sale or end-of-service-life for the FortiGate 400G. It is a current, shipping product. EOSL.ai updates this page when Fortinet publishes an EOL notice.
Is the FortiGate 400G still supported by Fortinet?
Yes. As of Aug 2026 the FortiGate 400G is an active Fortinet product with no published end-of-life date.
Where can I confirm the FortiGate 400G lifecycle status?
The FortiGate 400G is listed as a current product on Fortinet's site, linked on this page; Fortinet issues an End-of-Life notice when a product is retired.
More Fortinet hardware tracked here
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