ASA5555-K9 Firewall with 3DES/AES encryption.

Cisco ASA5555-K9 - ASA 5555-X Adaptive Security Appliance

The ASA5555-K9 delivers high-performance firewall and VPN capabilities for enterprise-grade deployments. With support for modular threat defense and scalable session handling, it’s designed to secure large networks with flexibility and resilience.

🔧 Key Specifications

• Firewall Throughput: Up to 4 Gbps
• VPN Throughput: Up to 1 Gbps
• Concurrent Sessions: Up to 1,000,000
• Interfaces: 8x Gigabit Ethernet ports
• VLANs: 200 (with Security Plus license)
• Memory: 8 GB RAM
• Flash Storage: 8 GB
• Expansion Slot: 1 SSD bay for IPS or FirePOWER module
• Form Factor: 1RU rack-mountable
• Dimensions: 43.9 x 36.8 x 4.45 cm
• Weight: Approx. 7.5 kg
• Power Supply: Internal AC
• Failover Support: Active/Standby with Security Plus license
• Encryption: Supports 3DES/AES

🧩 Ideal Use Cases

• Large enterprise edge firewall
• High-throughput VPN concentrator
• Environments requiring modular IPS or FirePOWER expansion
• Secure perimeter defense with scalable session capacity

⚙️ Licensing & Expansion
The base model includes firewall and VPN functionality. Optional licenses enable high availability, expanded VLANs, and advanced threat defense features such as IPS, AMP, and URL filtering via FirePOWER services.