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SonicWall TZ350 — End-of-Life & EOSL Dates

SUPPORT ENDING SOONSonicWall support ends October 2026.

SonicWall TZ350 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.

SonicWall TZ350 is still under SonicWall support, to Oct 2026. Fold the eventual replacement into your planning cycle.

End of sale

Apr 2022

Last date of support

Oct 2026

Part numbers

2

Check your part numbers in bulk Add to calendar

2

months of vendor support left

Support Runway Score40/100 · Action recommended
Why this score
  • End of service life within 6 months
  • 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

Figure 1. Support runs to Oct 2026. Budget a refresh or line up cover before that date.

Part numbers in this family

All 2 share the dates above. Find your exact part to confirm.

Part numberDescriptionEnd of saleLast supportStatus
TZ350SonicWall TZ350 next-generation firewallApr 2022Oct 2026Ending soon
TZ350WSonicWall TZ350W next-generation firewallApr 2022Oct 2026Ending soon

Options from here

SonicWall support for the SonicWall TZ350 ends soon. Weigh these before the cutoff:

Schedule migration

Support ends soon. Set the replacement window now, not mid-outage.

Line up third-party maintenance

Bridge coverage past the OEM cutoff if you can't migrate in time.

Budget the refresh

Get the replacement into this planning cycle.

Pre-stock spares

Secure spares before they get scarce after end-of-sale.

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.

SonicWall TZ350 — questions

Is the SonicWall TZ350 end of life?

Not yet. All tracked TZ350 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 TZ350?

Oct 2026, per the SonicWall end-of-sale bulletin.

Where do these TZ350 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.

On the same timetable

Embed this status on your wiki or README

A live badge that shows this model's support status and links here — it refreshes when the vendor date changes.

SonicWall TZ350 EOL / EOSL status
<a href="https://eosl.ai/system/sonicwall-tz350/"><img src="https://eosl.ai/badge/sonicwall-tz350.svg" alt="SonicWall TZ350 EOL / EOSL status"></a>
[![SonicWall TZ350 EOL / EOSL status](https://eosl.ai/badge/sonicwall-tz350.svg)](https://eosl.ai/system/sonicwall-tz350/)