Cisco ASA 5555-X
Network · 1U Rack
Lifecycle
- Released
- 2012-03-01
- General Availability
- 2012-06-01
- End of Sale
- 2020-09-04
- End of Support
- 2025-09-30
- End of Service Life
- 2028-09-30
EOL
When a vendor has not published an exact date, we render an estimated range with an explicit confidence score — never an empty cell. See how to read TPM library records honestly.
Failure Outlook
Age: 13.1 years
Failure likelihood: 74%
Likely to fail (most → least)
- SSD (120GB MLC wear-out)
- AC power supply capacitors
- Fan assemblies (high-cycle)
- Flash storage (8GB internal)
Indicative TPM Pricing
Indicative — not a quote.
| SLA tier | Annual | Monthly |
|---|---|---|
| 9×5 NBD | $600 – $950 | $50 – $79 |
| 24×7 NBD | $780 – $1,235 | $65 – $103 |
| 24×7×4 onsite + parts | $1,080 – $1,900 | $90 – $158 |
| 24×7×4 remote only | $540 – $1,330 | $45 – $111 |
Pricing confidence: ●●○○○
Monthly = annual ÷ 12. Real TPM monthly billing is typically ~5–10% higher than this — use annual for accurate budgeting.
Get a real quote:
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Security Advisories (0)
No advisories on file.
Security Context
Post-lifecycle security posture — buyer education, not a service pitch. See Why past-EOSL hardware becomes a CVE liability for the honest map.
- Patch availability
- ● End of vendor updates (no patches or advisories)
- Last firmware
- 2021-10-01
The ASA 5555-X reached its hardware Last Date of Support on September 30, 2025, and ASA 9.14(x) is the final software train supported on this platform — no further security patches will be issued by Cisco PSIRT. The device is a high-value target: VPN endpoints and stateful firewalls running unpatchable code are among the most commonly exploited assets in enterprise breach reports, and the ASA family has an extensive CVE history including critical remote-code-execution vulnerabilities. Organizations retaining this appliance must rely entirely on compensating controls — strict management-plane isolation, external monitoring, and formal risk-acceptance documentation — and should treat migration to a supported platform as an urgent priority. Compliance frameworks such as PCI DSS 4.0 and NIST 800-53 permit continued operation of EOL devices only when compensating controls are formally documented, risk-accepted by an appropriate authority, and reviewed at least annually.
Compensating controls that still work
- Immediately isolate the management interface (Management 0/0) on a dedicated out-of-band VLAN inaccessible from user or internet-facing segments.
- Disable ASDM/HTTP management over data interfaces; restrict SSH/console access to a dedicated jump host with MFA enforced.
- Apply inbound and outbound ACLs to block known-exploited ports and protocols identified in Cisco PSIRT advisories that will no longer receive patches for this platform.
- Enable syslog forwarding to an external SIEM and set alerts for anomalous authentication events, configuration changes, and connection-rate spikes.
- Conduct periodic manual review of Cisco PSIRT and NVD for new CVEs affecting ASA 9.14.x and document risk-acceptance decisions formally; many compliance frameworks (PCI DSS, NIST 800-53) permit continued operation under documented compensating controls.
- Evaluate air-gapping or strict policy segmentation if the appliance cannot be replaced; VPN termination on an EOL device presents elevated risk and should be migrated to a supported platform as a priority.
Bushido publishes this information because it's the honest answer to the question "what changes at EOSL and what stays the same." We do not sell vulnerability management, patch orchestration, or MSP services — but you can find vendors who do in our vetted partners directory.
Parts Market
Whole unit: $150 – $600
Common parts
- AC PSU 400W (ASA-PWR-AC) — $45
- 6-port GE Copper I/O Card — $55
- SSD 120GB MLC (ASA5500X-SSD120) — $60
- 6-port GE SFP I/O Card (ASA-IC-6GE-SFP-C) — $80
Find parts for this unit
Bushido publishes the standard bill of materials above. For substitute part chains, current pricing, and serial- or service-tag-specific configurations, go straight to the manufacturer's own portal — the authoritative source. We don't scrape or resell parts data, and we earn nothing from these links.
Cisco — official sources
Cisco spare-part sourcing runs through Cisco Commerce / partners; the support product page lists compatible modules and optics.
No single manufacturer publishes a cross-vendor "alternative parts" list, and no one official aggregates across all vendors. Lenovo and HPE expose substitute chains publicly; Dell and Sun/Oracle keep them internal or gated. These links are the honest map of where each vendor's data actually lives. If a link is dead or a portal has moved, tell us and we'll fix it.
Modern Replacements
Direct successor: Cisco Firepower 2140 (2017) — Cisco-recommended migration target for ASA 5555-X; 8.5 Gbps FW throughput, 1RU, FTD or ASA image
Current generation: Cisco Secure Firewall 3140 (2022) — Current mid-range NGFW; supports FTD/ASA, hardware crypto acceleration, clustering
Power / Rack
Idle: 95W · Typical: 175W · Max PSU: 400W
1U
Standard Bill of Materials (at GA)
The Cisco ASA 5555-X base Firewall Edition (ASA5555-K9) shipped as a 1RU appliance with a multicore enterprise-grade CPU, 16 GB of DDR3 RAM, 8 GB internal flash, and two hot-swappable 120 GB MLC SSD bays configured in RAID 1 for FirePOWER services storage. The standard interface configuration included eight integrated 10/100/1000BASE-T RJ-45 data ports (GigabitEthernet 0/0 through 0/7) and one dedicated copper GigabitEthernet management port (Management 0/0), plus two USB 2.0 Type-A ports and a serial RJ-45 console port. One 400W AC power supply was installed by default, with a second PSU slot available for optional hot-plug redundancy. One expansion slot on the rear accepted an optional 6-port GE interface card (copper or SFP). Software shipped as Cisco ASA OS with 5,000 IPsec VPN peers, 2 SSL VPN peers (base), Active/Active HA, and 2 security contexts; 3DES/AES encryption required a separate license (K9 SKU includes it). No rack rails were included in the base bundle; they were ordered separately.
| Component | Description | Part # | Qty | Notes |
|---|---|---|---|---|
| Chassis | ASA 5555-X 1RU appliance chassis with 8x GbE data ports, 1x GbE mgmt, 2x USB 2.0, RJ-45 console, 1x I/O expansion slot | ASA5555-K9 |
1 | Base 3DES/AES Firewall Edition; ASA5555-FTD-K9 for FTD image variant |
| CPU | Multicore enterprise-grade x86 processor (Intel Xeon-class, 2+ GHz) | — |
1 | CPU is soldered/integrated; not field-replaceable as discrete component |
| RAM | 16 GB DDR3 SDRAM (system memory) | — |
1 | Not field-upgradeable; 8 GB flash also onboard |
| SSD | 120 GB MLC Solid State Drive for FirePOWER/SFR module storage | ASA5500X-SSD120 |
2 | ASA 5555-X supports 2x SSDs in RAID 1; hot-swappable; required for FirePOWER services module |
| Power Supply | 400W AC hot-plug power supply, 85–264 VAC input | ASA-PWR-AC |
1 | Base config ships with 1 PSU; second slot accepts optional redundant PSU (ASA-PWR-AC); DC variant also available |
| I/O Expansion Card | 6-port GE SFP interface card for ASA 5545-X/5555-X | ASA-IC-6GE-SFP-C |
— | Optional; base config ships without; copper RJ-45 variant is ASA-IC-6GE-CU-C (not in base SKU) |
| Rack Rails | Fixed rack-mount brackets for 19-inch rack | ASA-BRACKETS= |
1 | Ordered separately; sliding rail kit not standard for this platform |
| License — Base VPN | 5,000 IPsec VPN peers, 2 SSL VPN peers, Active/Active HA, 2 security contexts, 3DES/AES | ASA5555-K9 |
1 | Included with K9 hardware SKU; additional SSL VPN peers require separate license |
BOM reflects the standard base Firewall Edition configuration (ASA5555-K9) at GA. The IPS Edition (ASA5555-IPS-K9) and FirePOWER Edition (ASA5555-FPWR-K9) bundles include additional licenses and SSD. Service-parts numbers may have been superseded; always cross-reference with Cisco's spare-parts portal and the official EoL bulletin part-number table before ordering.
BOM is AI-synthesized from public datasheets. Cross-reference with the vendor's spare-parts portal before ordering.
Firmware
- ASA:
9.14(4.14) - ASDM:
7.14(3.1) - FirePOWER module:
6.6.7