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ISR4451-X/K9

Cisco Chassis · ISR 3900 series Series

ISR4451-X/K9 is no longer available for purchase. End-of-sale was . Cisco support continues until .

Is the ISR4451-X/K9 still supported?

The ISR4451-X/K9 is no longer sold but Cisco continues to support it through 2028-11-30. See Cisco's lifecycle bulletin.

When does the ISR4451-X/K9 reach end of support?

Cisco support for the ISR4451-X/K9 ends on 2028-11-30.

What replaces the ISR4451-X/K9?

Cisco has not published a successor model for the ISR4451-X/K9.

ISR4451-X/K9 Lifecycle Overview

The Cisco ISR4451-X/K9 is a chassis product in the Cisco ISR 3900 series series. This product has reached end of sale as of and can no longer be ordered from Cisco. Existing deployments continue to receive vendor support until , after which the product will reach end of life.

Lifecycle Milestones

Lifecycle notice published 9y 8mo ago
End of sale 8y 5mo ago
Last order date 8y 2mo ago
End of software maintenance 8mo ago
End of failure analysis 1y 6mo ago
End of security vulnerability support in 2y 7mo
Last date of support in 2y 7mo
Applicable Platforms
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