Series lifecycle table

Cisco NCS 520 EOL List

This table tracks end-of-life milestones for 23 Cisco NCS 520 part numbers. For each record it lists the key dates published in Cisco lifecycle notices: the EOL announcement date, End-of-Sale (EOS), and End-of-Service-Life (EOSL). The Cisco NCS 520 family has no single end-of-life date; milestones are set per part number, so use the table to find the exact SKU you operate. Across this series, EOSL dates range from 2030-10-31 to 2030-10-31. Open any part number for source details, replacement fields, and current availability options.

23 products

Cisco NCS 520 Series

Total Products: 23 | Page 2 of 2

Cisco / Cisco NCS 520

N520-X-20G4Z-D

Cisco NCS 520 - 20xGE + 4x10GE, Industrial Temp

EOL: 2024-10-28
EOS: 2025-10-28
EOSL: 2030-10-31

Cisco / Cisco NCS 520

N520-X-4G4Z-A

Cisco NCS 520 - 4xGE + 4x10GE, Industrial Temp, AC power

EOL: 2024-10-28
EOS: 2025-10-28
EOSL: 2030-10-31

Cisco / Cisco NCS 520

N520-X-4G4Z-D

Cisco NCS 520 - 4xGE + 4x10GE, Industrial Temp, DC power

EOL: 2024-10-28
EOS: 2025-10-28
EOSL: 2030-10-31

Manufacturer	Part Number	Product Name	EOL Announcement	End of Sale (EOS)	End of Service Life (EOSL)
Cisco	N520-X-20G4Z-D	Cisco NCS 520 - 20xGE + 4x10GE, Industrial Temp	2024-10-28	2025-10-28	2030-10-31
Cisco	N520-X-4G4Z-A	Cisco NCS 520 - 4xGE + 4x10GE, Industrial Temp, AC power	2024-10-28	2025-10-28	2030-10-31
Cisco	N520-X-4G4Z-D	Cisco NCS 520 - 4xGE + 4x10GE, Industrial Temp, DC power	2024-10-28	2025-10-28	2030-10-31