Is the AT-SB4191 end of life?

Yes. The Allied Telesis AT-SB4191 has reached end of life. Vendor support ended on 2023-06-07.

When is the AT-SB4191 end of sale date?

The Allied Telesis AT-SB4191 reached end of sale on 2018-06-08. The last date of vendor support is 2023-06-07.

When does Allied Telesis support end for the AT-SB4191?

Allied Telesis support for the AT-SB4191 ended on 2023-06-07.

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AT-SB4191

Name: AT-SB4191
Brand: Allied Telesis
SKU: AT-SB4191
Availability: Discontinued

Allied Telesis Chassis · SB4191 Series

AT-SB4191 has reached end of life. Allied Telesis support ended 2023-06-07. Last available for order 2018-06-08.

AT-SB4191 Lifecycle Overview

The Allied Telesis AT-SB4191 is a chassis product in the Allied Telesis SB4191 series. This product has reached end of life as of 2023-06-07, meaning Allied Telesis no longer provides technical support, software updates, or hardware replacement for this product. It was last available for purchase on 2018-06-08. Organizations still running the AT-SB4191 should plan a migration .

Lifecycle Milestones

End of sale	2018-06-08
Last date of support	2023-06-07

Applicable Platforms

SB4191

Source: Official Allied Telesis notice · Last verified 2026-04-17