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EOL & EOSL Dates and Details

C1-CISCO4321/K9 EOL Data

End of-Life Announcement (EOL) 04/29/2022
End of Sale (EOS) 10/28/2022
End of Service Life (EOSL) 10/31/2027
Manufacturer Cisco
Category Routers
Product Series Cisco ISR 4300
Part Number C1-CISCO4321/K9
Model Number C1-CISCO4321/K9
Release Date
Replacement Part Number ISR4321/K9
Replacement Product Name Cisco ISR 4321 (2GE,2NIM,4G FLASH,4G DRAM,IPB)

Official EOL: Additional Information

Last Ship Date: HW 01/26/2023
End Of SW Maintenance Releases Date: HW 10/28/2023
End Of Vulnerability/Security Support: HW 10/27/2025
End Of Routine Failure Analysis Date: HW 10/28/2023
End Of New Service Attachment Date: HW 10/28/2023
End Of Service Contract Renewal Date: HW 01/23/2027
Last Date Of Support: HW 10/31/2027
Additional Information -
Official EOL Notice View Official EOL Documentation

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Explore More EOL Dates

Manufacturer Part Number Product Name EOL Date
Cisco ISR4351-SEC/K9 Cisco ISR 4351 Sec bundle w/SEC license 11/07/2022
Cisco ISR4321-SEC/K9 Cisco ISR 4321 Sec bundle w/SEC license 11/07/2022
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Cisco MEM-43-4G= Cisco 4G DRAM (1 x 4G) for Cisco ISR 4300 10/26/2023
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