Cisco ONE - 5520 Wireless Controller w/rack mounting kit (C1-AIR-CT5520-K9)
End of Life, End of Sale, and End of Service Life dates for the C1-AIR-CT5520-K9. Replacement options, third-party support, and hardware migration paths.
EOL, EOS, and EOSL data for C1-AIR-CT5520-K9
All dates are pulled from the manufacturer's official End-of-Life bulletin. End of Service Life is the date that matters for your support contract.
- Release Date
- 18 May 2009
- End of Life (EOL)
- Not announced
- End of Sale (EOS)
- 10 Dec 2021
- End of Service Life (EOSL)
- 31 Jan 2025
- Part Number
- C1-AIR-CT5520-K9
- Part Name
- Cisco ONE - 5520 Wireless Controller w/rack mounting kit
- Product Series
- 5500 Series Wireless Controllers
- Category
- Networking
- Brand
- Cisco
- Official OEM Notice
- View Cisco notice →
Networking hardware commonly stays in service for 8–12 years — past End of Sale and into End of Service Life. Without OEM hardware support, security patches and firmware updates stop. Third-party hardware maintenance and extended support can keep C1-AIR-CT5520-K9 and similar hardware operational for another 3–5 years past EOL. OEM‑sourced data: Need confirmation or help planning next steps? Contact us
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Other 5500 Series Wireless Controllers part numbers
9 other part numbers in the 5500 Series Wireless Controllers family.
| Product Name | Part Number | EOSL |
|---|---|---|
| Cisco 5520 Wireless Controller supporting 50 APs w/rack kit (AIR-CT5520-50-K9) | AIR-CT5520-50-K9 | 31 Jan 2025 |
| Cisco 5520 Wireless Controller w/rack mounting kit (AIR-CT5520-K9) | AIR-CT5520-K9 | 31 Jan 2025 |
| Cisco 5508 Series Wireless Controller for up to 100 APs (AIR-CT5508-100-K9) | AIR-CT5508-100-K9 | 31 Jul 2023 |
| Cisco 5508 Series Wireless Controller for up to 12 APs (AIR-CT5508-12-K9) | AIR-CT5508-12-K9 | 31 Jul 2023 |
| Cisco 5508 Series Wireless Controller for up to 25 APs (AIR-CT5508-25-K9) | AIR-CT5508-25-K9 | 31 Jul 2023 |
| Cisco 5508 Series Wireless Controller for up to 250 APs (AIR-CT5508-250-K9) | AIR-CT5508-250-K9 | 31 Jul 2023 |
| 5508 Series Controller for up to 50 APs (AIR-CT5508-50-K9) | AIR-CT5508-50-K9 | 31 Jul 2023 |
| Cisco 5508 Series Wireless Controller for up to 500 APs (AIR-CT5508-500-K9) | AIR-CT5508-500-K9 | 31 Jul 2023 |
| Cisco 5508 Series Wireless Controller for High Availability (AIR-CT5508-HA-K9) | AIR-CT5508-HA-K9 | 31 Jul 2023 |