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ASA 5555-X DC provides high performance and stable firewall protection for enterprise networks.
ASA5555-DC-K8
ASA 5555-X WITH SW 8GE DATA 1GE MGMT DC DES
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ASA5555-DC-K8
ASA 5555-X WITH SW 8GE DATA 1GE MGMT DC DES
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ASA5555-DC-K8 is a high-performance, rack-mount security appliance engineered for enterprise and branch office environments. Designed as a dedicated hardware firewall, it delivers robust throughput capacity with multi-gigabit performance, featuring a mix of high-speed LAN, WAN, and SFP+ ports. The system includes dual AC power supplies with redundancy to ensure continuous operation and incorporates a suite of security services such as IPS, antivirus, web filtering, and VPN to protect critical network infrastructures.
ASA5555-DC-K8 supports a variety of management and deployment options including centralized configuration, CLI, GUI, and cloud-based management, making it versatile for both SMB and large-scale enterprise applications. With advanced scalability options, high availability through active-active clustering, and comprehensive support for multiple VPN types and routing protocols, this appliance is ideally suited for secure access, segmentation, and unified threat management use cases that demand reliable performance and resilience.
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In large enterprise data centers running multi-tier applications, the ASA5555-X with SW 8GE Data and 1GE Management ports enforces perimeter security at line rate. Traffic entering DMZ, application, and database zones is inspected using advanced stateful firewalling, intrusion prevention, and application control. Benefit: Delivers up to 10 Gbps sustained throughput, reduces unauthorized access, and meets stringent compliance mandates (e.g., PCI DSS, HIPAA) without performance degradation.
Global organizations connecting on-premises data centers to public cloud workloads deploy the ASA5555-X to terminate high-speed IPsec VPN tunnels. The 8GE data interfaces handle aggregated VPN traffic, while the dedicated 1GE management port isolates control-plane operations. Benefit: Provides scalable, low-latency encryption for up to 5,000 concurrent tunnels, ensuring secure workload mobility and consistent policy enforcement across private and public clouds.
In virtualized environments with heavy east-west traffic, the ASA5555-X segments tenant and application zones using VLAN tagging on its 8GE interfaces combined with inline IPS. Lateral movement of threats is detected and blocked in real time, while granular policies enforce zero-trust micro-segmentation. Benefit: Minimizes blast radius of compromised workloads, accelerates threat containment, and boosts overall data center security posture without adding hardware sprawl.
To get the detailed certification, please go to the Compliance Center.
 ASA5555-DC-K8 |  ASA5585-S10-K8 |  ASA5585-S20-K9 |  ASA5555-K7 |  ASA5545-DC-K8 | |
|---|---|---|---|---|---|
| Architecture | Rack-mount | Rack-mount Appliance | Chassis | Rack-mount | Rack-mount |
| Centralized Configuration & Reporting | Yes | Yes | Cisco Defense Orchestrator | Yes | Yes |
| Concurrent Sessions | 500,000 | 500,000 | 2 Million | 500000 | 500000 |
| Deployment Type | Enterprise / Branch Office | Enterprise / Branch Office / Data Center | Enterprise / Data Center / Branch Office | Enterprise / Branch Office | Enterprise / Data Center |
| Depth | 18 inches | 19.1 inches | N/A | 15.5 inches | 18.0 inches |
| Device Type | NGFW | NGFW | NGFW | NGFW | NGFW |
| Expansion Slots | SFP | SFP | SFP | SFP | SFP |
| Feature | Integrated Security, Advanced Threat Protection | Advanced Threat Protection, IPS, Antivirus, Web Filtering, VPN | Next-Generation Firewall, IPS, Advanced Malware Protection | High Availability, Clustering, Deep Packet Inspection | High Availability, Clustering, Scalability |
| Firewall Layer Supported | Layer 3 / Layer 7 | Layer 3 / Layer 4 / Layer 7 | Layer 3 / Layer 4 / Layer 7 | Layer 3 / Layer 7 | Layer 3 / Layer 4 / Layer 7 |
| Firewall Policies Supported | 200 | N/A | N/A | 200 | 1000 |
| Firewall Throughput | 10 Gbps | 15 Gbps | 20 Gbps | 20 Gbps | 10 Gbps |
| Flash Storage | 128 GB | 128 GB | 32 GB | 128 GB SSD | 128 GB |
| Form Factor | 2 RU | 1 RU | Chassis | 1 RU | 1 RU |
| Height | 4.5 inches | 1.8 inches | N/A | 1.75 inches | 1.75 inches |
| High Availability | Active-Active | Active-Active | Active-Passive | Active-Active | Active-Active |
| IPS Throughput | 5 Gbps | 4 Gbps | 6 Gbps | 8 Gbps | 4 Gbps |
| Integrated I/O | 8 | N/A | N/A | 8 | 8 |
| Interfaces | RJ-45 / SFP+ | RJ-45 / SFP | RJ-45 / SFP | RJ-45 / SFP | RJ-45 / SFP |
| LAN Ports | 8 LAN Ports | 8 LAN Ports | 8 LAN Ports | 8 LAN Ports | 8 LAN Ports |
| Logging & Monitoring | Built-in / Syslog | Built-in / Syslog / Cloud Logging | Built-in / Syslog | Built-in / Syslog | Built-in / Syslog / Cloud Logging |
| Management Options | Cloud / CLI / GUI / Centralized / REST API / SNMP | Cloud / CLI / GUI / SNMP | CLI / GUI / SNMP / REST API | Cloud / CLI / GUI / Centralized / REST API / SNMP | Cloud / CLI / GUI / Centralized / SNMP |
| Maximum Concurrent Sessions | 1,000,000 | 1,000,000 | 2 Million | 1000000 | 1000000 |
| Memory | 16 GB | 16 GB | 16 GB | 16 GB | 16 GB |
| New Sessions Per Second | 50,000 | 50,000 | 50,000 | 100000 | 15000 |
| 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 | ASA5555-DC-K8 | ASA5585-S10-K8 | Cisco ASA5585-S20-K9 | ASA5555-K7 Next-Generation Firewall Appliance | ASA5545-DC-K8 |
| Product Type | Firewall Appliance | Firewall Appliance | Firewall Appliance | Firewall Appliance | Firewall Appliance |
| Rack Units | 2 RU | 1 RU | 2 RU | 1 RU | 1 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 / Static Routing | OSPF / BGP / RIP / Static Routing |
| Security Services | Antivirus / Web Filtering / Application Control / IPS / VPN | Antivirus / Web Filtering / Application Control / IPS / VPN | IPS / Antivirus / Web Filtering / VPN | Antivirus / Web Filtering / Application Control / IPS / VPN | Antivirus / Web Filtering / Application Control / IPS / VPN |
| Supported Applications | 50 | Multiple security applications | N/A | 100 | 50 |
| Supported VPN Types | IPSec / SSL VPN | IPSec / SSL VPN | IPSec / SSL VPN | IPSec / SSL VPN / GRE | IPSec / SSL VPN / L2TP |
| Switch Ports | Yes | Yes | No | Yes | Yes |
| Threat Protection Throughput | 6 Gbps | 6 Gbps | 10 Gbps | 10 Gbps | 5 Gbps |
| Use Case | VPN / Secure Access / UTM | VPN / Secure Access / UTM | NGFW / UTM / VPN | VPN / Secure Access / UTM | VPN / Secure Access / UTM |
| Users Supported | 50,000 | N/A | N/A | Unlimited | Unlimited |
| Users/Nodes | Unlimited | Unlimited | Unlimited | Unlimited | Unlimited |
| VPN Throughput | 7 Gbps | 10 Gbps | 10 Gbps | 15 Gbps | 8 Gbps |
| WAN Ports | 4 WAN | 4 WAN | 2 WAN | 2 WAN | 2 WAN |
| Weight | 25 lbs | 30 lbs | N/A | 25 lbs | 20 lbs |
| Width | 17 inches | 17.3 inches | N/A | 17.5 inches | 17.2 inches |
ASA 5555-X DC provides high performance and stable firewall protection for enterprise networks.
Professional-grade appliance with reliable throughput and consistent security.
Handles heavy traffic efficiently and maintains stability.
Durable and dependable for critical enterprise applications.
Easy deployment with minimal configuration needed.
The Cisco ASA 5555-X is a high-performance next-generation firewall appliance offering eight Gigabit Ethernet data ports, one Gigabit Ethernet management port, advanced threat protection and centralized management for data center deployments.
The ASA 5555-X features a desktop DC power design, eight Gigabit Ethernet data interfaces, one Gigabit Ethernet management interface, up to 6 Gbps firewall throughput and support for SSD storage and SFP uplinks.
With standard security features enabled, the ASA 5555-X delivers up to 6 Gbps of firewall throughput, ensuring low latency and high performance under peak loads.
The ASA 5555-X supports up to 750 IPsec VPN peers and 100 SSL VPN peers simultaneously, providing scalable remote-access and site-to-site connectivity.