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ASA5585-S20X-K9
ASA 5585-X CHASSIS WITH SSP20 8GE 2SFP+ 2GE MGMT 2 AC 3DES/A...
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ASA5585-S20X-K9 is a high-performance rack-mounted security appliance engineered for enterprise, data center, branch, and cloud deployments. It delivers robust firewall protection with a 20 Gbps throughput capacity and features versatile port configurations including LAN, WAN, and SFP interfaces, all powered by redundant AC power supply options.
ASA5585-S20X-K9 is designed to support advanced security services such as IPS, antivirus, web filtering, and VPN functionalities, offering integrated management via CLI, GUI, and SNMP for streamlined deployment and centralized reporting. With scalability, active-passive high availability, and clustering support, this device meets the demands of modern, security-driven network infrastructures.
ASA5585-S20X-K9 price is $37,198.00, a 55.7% saving from the Cisco list price of $83,995.00. ASA5585-S20X-K9 is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for ASA5585-S20X-K9 for additional pricing. Browse the full Cisco Asa 5500 Series series or explore all Cisco products.
A Fortune 500 data center handling 35 Gbps of web, database and application traffic deploys the ASA5585-S20X-K9-ASA 5585-X chassis with SSP20 to deliver 20 Gbps of hardware-accelerated stateful firewall and IPS inspection. With 8×1GE, 2×SFP+ interfaces, dual AC power and built-in 3DES/AES encryption, it achieves 99.999% uptime and sub-millisecond failover. Benefit: uninterrupted perimeter defense, consistent low-latency performance and full compliance with enterprise security mandates.
A global retailer connects five geographically dispersed data centers over IPsec, consolidating traffic through the ASA5585-S20X-K9-ASA 5585-X chassis with SSP20 as a high-performance VPN concentrator. Leveraging 2 Gbps of dedicated encrypted throughput, 8 Gigabit and 2 SFP+ ports plus 3DES/AES offload, it delivers sub-30 ms replication latency and FIPS-compliant encryption. Benefit: centralized policy management, secure data replication and reduced operational complexity.
A multinational financial services firm supports 2,000 simultaneous SSL VPN users on the ASA5585-S20X-K9-ASA 5585-X chassis with SSP20, delivering 1.5 Gbps of encrypted remote‐access throughput. Dual management ports, redundant AC power and hardware-accelerated AES ensure 24×7 connectivity and 40% higher VPN performance than software-only solutions. Benefit: resilient, high-speed remote access, improved end-user experience and stringent regulatory compliance.
To get the detailed certification, please go to the Compliance Center.
| ASA5585-S20X-K9 |  ASA5506-SEC-BUN-K9 |  ASA5545-CU-2AC-K9 |  ASA5580-40-10GE-K9 |  ASA5550-BUN-K9 | |
|---|---|---|---|---|---|
| Product Type | Firewall Appliance | Firewall Appliance | Firewall Appliance | Firewall Appliance | Firewall Appliance |
| Architecture | Rack-mount | Desktop | Rack-mount | Rack-mount | Rack-mount |
| Deployment Type | Enterprise / Data Center / Branch / Cloud | Small Business / Branch Office | Enterprise / Branch Office | Enterprise / Data Center | Enterprise / Branch Office |
| Use Case | VPN / Secure Access / UTM | VPN / Secure Access / UTM | VPN / Secure Access / UTM | VPN / Secure Access / IPS / UTM | VPN / Secure Access / UTM |
| Firewall Layer Supported | Layer 3 / Layer 4 / Layer 7 | Layer 3 / Layer 4 | Layer 3, Layer 4, Layer 7 | Layer 3 | Layer 3 / Layer 4 / Layer 7 |
| Power Source | AC Power Supply | AC Power Supply | AC Power Supply | AC Power Supply | AC Power Supply |
| Redundant Power Supply Supported | Yes | No | Yes | Yes | Yes |
| Firewall Throughput | 20 Gbps | 300 Mbps | 3.2 Gbps | 10 Gbps | 750 Mbps |
| Threat Protection Throughput | 9 Gbps | 150 Mbps | N/A | 8 Gbps | 450 Mbps |
| IPS Throughput | 4 Gbps | 150 Mbps | 1.25 Gbps | 8 Gbps | 300 Mbps |
| VPN Throughput | 12 Gbps | 100 Mbps | 1.2 Gbps | 6 Gbps | 450 Mbps |
| Supported Applications | N/A | N/A | N/A | 8 | N/A |
| Centralized Configuration & Reporting | Cisco ASA Management Center | Centralized | Cisco ASDM & Cisco Security Manager | Cisco ASDM / Cisco Security Manager | Cisco ASDM, SNMP, syslog |
| Feature | Integrated Security Services | Next-Generation Firewall features | Advanced Malware Protection | Advanced threat protection, VPN, IPS, antivirus, web filtering, high availability clustering | High Performance Security Services |
| Concurrent Sessions | 1000000 | 25000 | 150,000 | 100000 | 650,000 |
| Maximum Concurrent Sessions | 1000000 | 50000 | 300,000 | 100000 | 650,000 |
| Users/Nodes | Unlimited | 250 | Unlimited | Unlimited | N/A |
| Integrated I/O | N/A | 8 | N/A | 40 | 8 |
| New Sessions Per Second | 50000 | 3000 | 30,000 | 20000 | 100,000 |
| Supported VPN Types | IPSec / SSL VPN | IPSec / SSL VPN | IPSec, SSL VPN, L2TP | IPSec / SSL VPN | IPSec / SSL VPN |
| Routing Protocols Supported | OSPF / BGP / RIP / Static Routing | OSPF / BGP / RIP / Static Routing | OSPF, BGP, RIP, Static Routing | Static Routing | OSPF / BGP / RIP / Static Routing |
| Security Services | Antivirus / Web Filtering / Application Control / IPS / VPN | Antivirus / Web Filtering / IPS / VPN | Antivirus, Web Filtering, Application Control, IPS, VPN | Antivirus / Web Filtering / IPS / VPN | Antivirus / Web Filtering / Application Control / IPS / VPN |
| High Availability | Active-Passive | Active-Passive | Active-Passive | Active-Passive | Active-Passive |
| Interfaces | RJ-45 / SFP | RJ-45 | RJ-45, SFP | SFP+ | RJ-45 / SFP |
| WAN Ports | 2 WAN | N/A | 2 WAN | N/A | 2 WAN |
| LAN Ports | 4 LAN Ports | 8 LAN Ports | 8 LAN Ports | 40 LAN Ports | 4 LAN Ports |
| Switch Ports | No | Yes | Yes | No | No |
| POE Ports | No | No | No | No | No |
| Management Options | CLI / GUI / SNMP | CLI / GUI / SNMP | CLI, GUI, Centralized, REST API, SNMP | CLI / GUI / SNMP | CLI / GUI / SNMP |
| Logging & Monitoring | Built-in / Syslog | Built-in / Syslog | Built-in, Syslog, Cloud Logging | Built-in / Syslog | Built-in / Syslog |
| Firewall Policies Supported | N/A | N/A | 5000 | N/A | N/A |
| Users Supported | N/A | N/A | 10,000 | N/A | N/A |
| Memory | 16 GB | 4 GB | 8 GB | 16 GB | 4 GB |
| Flash Storage | 128 GB SSD | 8 GB | 64 GB | 128 GB | 16 GB |
| Expansion Slots | SFP | N/A | SFP | N/A | SFP |
| Form Factor | Rack-mount | Desktop | 1 RU | 2 RU | 1 RU |
| Rack Units | 2 RU | N/A | 1 RU | 2 RU | 1 RU |
| Device Type | NGFW | NGFW | NGFW | NGFW | NGFW |
| Product Name | Cisco ASA 5585-X S20X-K9 Security Appliance | Cisco ASA5506-SEC-BUN-K9 | Cisco ASA5545-CU-2AC-K9 | ASA5580-40-10GE-K9 | ASA5550-BUN-K9 |
| Height | 3.44 inches | 1.8 inches | 1.75 inches | 3.5 inches | 4.3 inches |
| Width | 17.2 inches | 17.7 inches | 17 inches | 17.3 inches | 17.1 inches |
| Depth | 30 inches | 15.7 inches | 19 inches | 18 inches | 20.9 inches |
| Weight | 50 lbs | 16 lbs | 25 lbs | 30 lbs | 39 lbs |
Robust 5585-X with SSP20 delivers reliable firewall performance and excellent enterprise-grade throughput.
Easy deployment with minimal downtime and stable network operations.
Handles high-traffic environments efficiently with consistent reliability.
Professional-grade security appliance for critical enterprise networks.
Durable and dependable under heavy workloads.
The ASA 5585-X chassis with SSP20 is a high-throughput security appliance that integrates a specialized service module (SSP20) for advanced firewall, VPN, and intrusion prevention in enterprise networks.
It offers 8 fixed Gigabit Ethernet ports, 2 SFP+ interfaces for 10Gbps uplinks, and 2 dedicated Gigabit Ethernet management ports.
The unit includes dual AC redundant power supplies for high availability and continuous operation.
It supports 3DES and AES encryption, including AES-128 and AES-256, for secure VPN tunnels.
The SSP20 module delivers up to 20 Gbps of firewall throughput and 3 Gbps of IPsec VPN performance under ideal conditions.
Yes, it supports Cisco ASA Software, and you can add licenses for features like AnyConnect VPN, FirePOWER services, and advanced malware protection.
Yes, it supports active/standby high availability for seamless failover and continuous security services.
The chassis is 1U high, requires a standard 19-inch rack, and measures 17.5" x 15.9" x 1.75" (W x D x H).
You can manage it via CLI over SSH, ASDM GUI, or centrally with Cisco Security Manager and Cisco Defense Orchestrator.
It integrates stateful packet inspection, intrusion prevention, firewall services, VPN, and optional FirePOWER threat defense modules.
It is ideal for medium to large enterprise and data center deployments requiring high throughput and advanced security.
No, the SSP20 module is specific to the ASA 5585-X chassis and is not compatible with earlier ASA appliance series.
Cisco offers a limited lifetime warranty for the chassis and one-year SMARTnet support, with options to extend support and add 24/7 coverage.
Yes, you can field-upgrade to higher-capacity SSP modules in the ASA 5585-X chassis to scale performance.
Yes, it supports up to 20 virtual firewall contexts, allowing segmentation into multiple independent security domains.
Operational temperature range is 32° to 104°F (0° to 40°C) with humidity between 5% and 90% non-condensing.
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