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EOL & EOSL Dates and Details

C1-CISCO4331/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-CISCO4331/K9
Model Number C1-CISCO4331/K9
Release Date
Replacement Part Number ISR4331/K9
Replacement Product Name Cisco ISR 4331 (3GE,2NIM,1SM,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 ISR4331-VSEC/K9 Cisco ISR 4331 Bundle w/UC & Sec Lic, PVDM4-32 11/07/2022
Cisco DVD-I43-5.4-K9 Cisco ISRWAAS software version 5.4 on DVD for ISR4300 Series 05/05/2021
Cisco ISR4351-AX/K9 Cisco ISR 4351 AX Bundle w/ APP,SEC lic 11/07/2022
Cisco PWR-4320-POE-AC Cisco AC Power Supply with POE for Cisco ISR 4320 11/07/2022
Cisco MEM-43-4G= Cisco 4G DRAM (1 x 4G) for Cisco ISR 4300 10/26/2023
Cisco SSD-SATA-200G Cisco 200 GB, SATA Solid State Disk 03/29/2017
Cisco SISR4300NPEK9-165 Cisco ISR 4300 Series IOS XE Universal-No Payload Encryption 05/05/2021
Cisco ISR4331-SEC/K9 Cisco ISR 4331 Sec bundle w/SEC license 11/07/2022
Cisco MEM-43-8G Cisco 8G DRAM for ISR 4300 Series Routers 05/06/2022
Cisco SISR4300UK9-315S Cisco ISR 4300 Series IOS XE Universal 05/05/2021
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