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ASA5585-S20-K8
ASA 5585-X CHASSIS WITH SSP20 8GE 2SFP 2GE MGT 1 AC DES
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ASA5585-S20-K8 is a high-performance chassis-based firewall appliance engineered for enterprise and data center environments that demand robust throughput and comprehensive security services. It delivers exceptional performance with a modular hardware design, integrating multi-core processing to support IPS, antivirus, web filtering, and VPN functionalities while accommodating a flexible port configuration including LAN, WAN, and SFP interfaces with redundant AC power supplies to ensure continuous operation.
ASA5585-S20-K8 is optimized for diverse deployment scenarios ranging from large enterprises and branch offices to cloud integrations, offering centralized management through CLI, GUI, and REST APIs. Its built-in high availability and clustering capabilities ensure seamless scalability, efficient session management, and real-time threat protection, making it an ideal choice for modern secure network infrastructures.
ASA5585-S20-K8 price is $31,883.00, a 55.7% saving from the Cisco list price of $71,994.00. ASA5585-S20-K8 is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for ASA5585-S20-K8 for additional pricing. Browse the full Cisco Asa 5500 Series series or explore all Cisco products.
Scenario: A global financial services firm deploys the ASA5585-X chassis equipped with the SSP20 (8GE, 2 SFP, 2 GE MGT) at its primary data center perimeter. Deployment delivers up to 20 Gbps of stateful firewall throughput, advanced intrusion prevention and SSL decryption in a single appliance. Outcome: Achieves sub-millisecond latency, real-time threat inspection and full PCI DSS compliance, ensuring high-speed protection for mission-critical transactions.
Scenario: A Fortune 500 manufacturer centralizes connectivity for 200 branch sites and AWS workloads by using an ASA5585-X chassis with SSP20 to aggregate IPsec tunnels. The 8x GE and 2x SFP ports support up to 10,000 concurrent VPN sessions and pair in active/standby for 99.999% uptime. Outcome: Delivers centralized policy enforcement, seamless hybrid-cloud connectivity and high availability, reducing network management overhead by 40%.
Scenario: A national managed-security provider hosts segregated firewall contexts on ASA5585-X with SSP20, offering dedicated 8 GE and 2 SFP throughput plus 2 GE management per tenant. Each customer network is isolated via hardware-based virtual contexts with granular access control and on-demand provisioning. Outcome: Ensures predictable performance, end-to-end compliance and accelerates new tenant onboarding by 50%, while maximizing chassis utilization.
To get the detailed certification, please go to the Compliance Center.
 ASA5585-S20-K8 |  ASA5585-S20X-K9 |  ASA5525-K9 |  ASA5585-S10-K9 |  ASA5580-20-BUN-K9 | |
|---|---|---|---|---|---|
| Architecture | Chassis | Rack-mount | Rack-mount | Rack-mount | Rack-mount |
| Centralized Configuration & Reporting | Yes | Cisco ASA Management Center | Cisco ASDM / Cisco Security Manager | Cisco ASDM / FMC | N/A |
| Concurrent Sessions | 2 Million | 1000000 | 250,000 | N/A | N/A |
| Deployment Type | Enterprise / Data Center / Branch Office | Enterprise / Data Center / Branch / Cloud | Enterprise / Branch Office | Enterprise / Data Center | Enterprise / Branch Office |
| Depth | 20 inches | 30 inches | 16.9 in | 16.5 | N/A |
| Device Type | NGFW | NGFW | NGFW | NGFW | NGFW |
| Expansion Slots | SFP | SFP | N/A | SFP | SFP |
| Feature | High Availability, Clustering, Scalability | Integrated Security Services | Advanced Threat Defense, IPS, VPN, Web Filtering, Antivirus | Advanced Malware Protection, Threat Intelligence | Advanced Threat Defense |
| Firewall Layer Supported | Layer 7 | Layer 3 / Layer 4 / Layer 7 | Layer 3 / Layer 4 | Layer 3 / Layer 4 | Layer 3 |
| Firewall Policies Supported | 500 | N/A | N/A | N/A | N/A |
| Firewall Throughput | 20 Gbps | 20 Gbps | 2.5 Gbps | 15 Gbps | 20 Gbps |
| Flash Storage | 128 GB | 128 GB SSD | 16 GB | 64 GB | 16 GB |
| Form Factor | Chassis | Rack-mount | 1 RU | 1 RU | Rack-mount |
| Height | 4 inches | 3.44 inches | 1.7 in | 1.75 | N/A |
| High Availability | Active-Active | Active-Passive | Active-Passive | Active-Passive | Active-Passive |
| IPS Throughput | 4 Gbps | 4 Gbps | 600 Mbps | N/A | N/A |
| Integrated I/O | 4 | N/A | N/A | N/A | N/A |
| Interfaces | RJ-45 / SFP / SFP+ | RJ-45 / SFP | RJ-45 / SFP | RJ-45 / SFP | SFP |
| LAN Ports | 8 LAN Ports | 4 LAN Ports | 4 LAN Ports | 8 LAN Ports | 4 LAN Ports |
| Logging & Monitoring | Built-in / Syslog / Cloud Logging | Built-in / Syslog | Built-in | Built-in / Syslog | Built-in |
| Management Options | Cloud / CLI / GUI / Centralized / REST API / SNMP | CLI / GUI / SNMP | CLI / GUI / SNMP | Cloud / CLI / GUI / SNMP | CLI / GUI / SNMP |
| Maximum Concurrent Sessions | 2 Million | 1000000 | 250,000 | N/A | N/A |
| Memory | 16 GB | 16 GB | 4 GB | 8 GB | 8 GB |
| New Sessions Per Second | 150,000 | 50000 | 8,000 | N/A | N/A |
| POE Ports | No | No | No | No | No |
| Power Source | AC Power Supply | AC Power Supply | AC Power Supply | AC Power Supply | AC Power Supply |
| Product Name | ASA5585-S20-K8 | Cisco ASA 5585-X S20X-K9 Security Appliance | ASA5525-K9 | Cisco ASA5585-S10-K9 | ASA5580-20-BUN-K9 |
| Product Type | Firewall Appliance | Firewall Appliance | Firewall Appliance | Firewall Appliance | Firewall Appliance |
| Rack Units | 4 RU | 2 RU | 1 RU | 1 RU | 2 RU |
| Redundant Power Supply Supported | Yes | Yes | Yes | Yes | Yes |
| Routing Protocols Supported | OSPF / BGP / RIP / Static Routing | OSPF / BGP / RIP / Static Routing | OSPF / BGP / RIP / Static Routing | OSPF / BGP / RIP / Static Routing | OSPF / BGP / RIP / Static Routing |
| Security Services | Antivirus / Web Filtering / Application Control / IPS / DLP / Sandboxing / VPN | Antivirus / Web Filtering / Application Control / IPS / VPN | Antivirus / Web Filtering / IPS / VPN | IPS / Antivirus / Web Filtering / VPN | Antivirus / Web Filtering / Application Control / IPS / VPN |
| Supported Applications | 10 | N/A | N/A | N/A | N/A |
| Supported VPN Types | IPSec / SSL VPN / L2TP / PPTP / GRE | IPSec / SSL VPN | IPSec / SSL VPN | IPSec / SSL VPN / L2TP | IPSec / SSL VPN |
| Switch Ports | No | No | No | No | No |
| Threat Protection Throughput | 5 Gbps | 9 Gbps | 600 Mbps | N/A | N/A |
| Use Case | VPN / Secure Access / UTM | VPN / Secure Access / UTM | VPN / Secure Access / UTM | VPN / Secure Access / UTM | VPN / Secure Access |
| Users Supported | N/A | N/A | N/A | N/A | N/A |
| Users/Nodes | Unlimited | Unlimited | N/A | Unlimited | Unlimited |
| VPN Throughput | 6 Gbps | 12 Gbps | 1.2 Gbps | 8 Gbps | N/A |
| WAN Ports | 2 WAN | 2 WAN | 2 WAN | 2 WAN | 2 WAN |
| Weight | 50 lbs | 50 lbs | 17 lbs | 35 lbs | N/A |
| Width | 17 inches | 17.2 inches | 17.3 in | 17.3 | N/A |
5585-X SSP20 chassis delivers stable and reliable firewall throughput for enterprise networks.
Easy deployment and minimal downtime during setup.
Handles moderate traffic efficiently and reliably.
Professional-grade firewall for consistent network protection.
Durable appliance with reliable enterprise-level performance.
The Cisco ASA5585-S20-K8 is a chassis-based ASA 5585-X firewall featuring the SSP20 services module, 8 Gigabit Ethernet ports, 2 SFP ports, 2 Gigabit management interfaces, and a single AC power supply.
Equipped with the SSP20 module, the ASA5585-S20-K8 delivers up to 4 Gbps of firewall throughput for high-speed packet inspection and enterprise-grade security.
It offers 8 Gigabit Ethernet ports, 2 SFP ports for fiber connectivity, and 2 dedicated Gigabit Ethernet management ports for out-of-band administration.
The SSP20 module supports Stateful Firewall, Intrusion Prevention System (IPS), IPsec VPN, SSL VPN, and advanced threat defense capabilities.