SonicWall TZ400 — End-of-Life & EOSL Dates
SonicWall TZ400 next-generation firewall. Published last-order-day (end-of-sale) and end-of-support (EOSL) dates from SonicWall's public Product Life Cycle Tables, linked for verification.
Support summary
Ending soonSonicWall TZ400 is still under SonicWall support, to Aug 2026. Fold the eventual replacement into your planning cycle.
Why this score
- End of service life within 6 months
- Vendor-published date, source-linked
- Category: next-generation firewall
The score reflects support-lifecycle timing and source confidence only — it is not a risk, safety or compliance rating. How it’s calculated →
TZ400
ENDING SOON1 SKU in this group
TZ400W
ENDING SOON1 SKU in this group
Options from here
Cutoff approachingSonicWall support for the SonicWall TZ400 ends soon. Weigh these before the cutoff:
Support ends soon — set the replacement window now, not mid-outage.
Bridge coverage past the OEM cutoff if you can't migrate in time.
Get the replacement into this planning cycle.
Secure spares before they get scarce after end-of-sale.
Independent and informational — EOSL.ai sells no hardware or maintenance and lists no paid placements. Third-party maintenance keeps unsupported gear in production past the OEM cutoff; whether it fits depends on the asset's role.
SonicWall TZ400 — questions
Is the SonicWall TZ400 end of life?
Not yet — all tracked TZ400 SKU groups are still within SonicWall support, though dates vary by SKU. See the breakdown below.
What is the last date of support for the TZ400?
Aug 2026 — per the SonicWall end-of-sale bulletin.
Where do these TZ400 dates come from?
Every end-of-sale and end-of-service-life date on this page links to the official SonicWall end-of-sale bulletin it was taken from.
Embed this status on your wiki or README
