Cisco ASA5555-K9 Firewall Edition Security Appliance Cisco ASA5555XK9

Description:

The Cisco ASA5555-X-K9 Firewall Edition Security Appliance is used in enterprise network infrastructures to provide advanced firewall protection, secure VPN connectivity, and threat defense for large-scale network environments. This security appliance is part of the Cisco Adaptive Security Appliance (ASA) series and is designed to protect network traffic by enforcing security policies, monitoring data flow, and preventing unauthorized access across enterprise networks. Built for high-performance security operations, it supports scalable network protection for data centers, corporate networks, and internet gateways. Network administrators and system integrators commonly deploy this appliance for repair, retrofit, expansion, or replacement in enterprise security architectures and perimeter network protection systems.

Applications:

The Cisco ASA5555-X-K9 security appliance is commonly used in enterprise data centers, corporate headquarters networks, and large branch office environments where high-performance firewall protection and secure VPN connectivity are required. It is typically installed at network perimeters or gateway points to protect internal systems from external threats, manage secure remote access, and enforce network security policies across large enterprise infrastructures.

Technical Specifications:

• Manufacturer: Cisco Systems
• Manufacturer Part Number (MPN): ASA5555-X-K9
• Product Type: Enterprise Security Appliance Firewall
• Series: Cisco ASA 5500-X Series
• Firewall Throughput: Up to 4 Gbps
• VPN Throughput: Up to 1.2 Gbps
• Concurrent Connections: Up to 1,000,000 sessions
• Interfaces: 8 × Gigabit Ethernet ports
• Expansion Slots: 1 × network expansion slot
• Security Features: Stateful firewall, intrusion prevention, VPN support, threat detection
• VPN Support: IPsec VPN, SSL VPN, site-to-site VPN, remote access VPN
• Management Interfaces: CLI, ASDM web interface, SNMP
• Mounting Type: Rack mountable (1U form factor)
• Power Supply: Internal AC power supply
• Operating Temperature Range: 0°C to 40°C

Common Replacements:

• Cisco ASA5545-X-K9 Firewall Security Appliance
• Cisco Firepower 2110 Network Security Appliance
• Cisco Firepower 2130 Network Security Appliance