Mixed data · Cisco verified from Cisco EOL bulletins · other vendors still sample (flagged on each record)
Firewall / security appliance · 5506-X / 5508-X / 5516-X
ASA5516-FTD-K9
ASA 5500-X Series Firewalls — ASA 5516-X firewall
ENDING SOON2 mo
until end of service life
Lifecycle position
now
availableend of saleservice
AvailableSep 2012
End of saleAug 2021
Last security firmwareASA Software 9.x
Options from here
Third-party maintenanceCovered past the OEM cutoff, typically well below renewal pricing.
Pre-stock sparesModules and units still circulate on the secondary market.
Schedule migrationCarrying production traffic? Set the replacement window now, not mid-outage.
Run to failureLow-criticality role — document the risk, harden backups, retire on your terms.
Other SKUs in 5500-X Series Firewalls
COMPARE SUPPORT PROVIDERSModule mounts here once partners are live.