How is the ASA 5555-X managed?

You can manage the ASA 5555-X via its dedicated Gigabit Ethernet management port using ASDM (Adaptive Security Device Manager) or through secure CLI via SSH.

What licensing options are available for the ASA 5555-X?

Cisco offers modular licensing for the ASA 5555-X, including Base Firewall, Security Plus for high availability and advanced throughput, and AnyConnect VPN licenses.

Does the ASA 5555-X support high availability configurations?

Yes, the ASA 5555-X supports active/standby high availability with Stateful Failover and Security Plus licensing for seamless service continuity.

What advanced security features are included in the ASA 5555-X?

The ASA 5555-X provides features such as intrusion prevention (IPS), URL filtering, malware defense, and identity-based access control when paired with Cisco Firepower services.

Can I deploy the ASA 5555-X in a data center environment?

Absolutely, the ASA 5555-X’s high throughput, eight GE data ports, and advanced security services make it ideal for data center perimeter or internal segmentation deployments.

How do I perform a software upgrade on the ASA 5555-X?

Use the ASDM software upgrade wizard or CLI commands to upload the new ASA software image to flash and configure the boot system variable before rebooting.

What are common troubleshooting steps for the ASA 5555-X?

Verify interface status, check ACLs, review syslogs, run show commands (show version, show conn), and use packet-tracer to simulate traffic flow issues.

What warranty and support options are offered for ASA 5555-X?

Cisco provides a limited lifetime hardware warranty and offers SMARTnet support contracts for 24×7 technical assistance, software updates, and hardware replacement.

Is the ASA 5555-X suitable for remote-access VPN deployments?

Yes, with AnyConnect support and up to 5,000 IPsec or SSL VPN peers, the ASA 5555-X delivers scalable, secure remote-access connectivity.

What is the difference between ASA 5555-X and ASA 5545-X?

The ASA 5555-X offers higher firewall (3 Gbps vs. 1.5 Gbps) and IPS throughput, larger concurrent session capacity, and more robust hardware acceleration compared to the ASA 5545-X.

What system requirements must be met before installing the ASA 5555-X?

Ensure rack space (1RU), adequate AC power (100–240V), proper cooling, and a valid Cisco software license prior to deploying the ASA 5555-X.

How do I configure site-to-site VPN on the ASA 5555-X?

Use ASDM or CLI to define IKE policies, create crypto maps, configure ACLs to permit interesting traffic, and apply the crypto map to the appropriate interface.

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ASA5555-K9

Name: ASA 5555-X with SW, 8GE Data, 1GE Mgmt, AC, 3DES/AES
Brand: Cisco
SKU: ASA5555-K9
Price: 7462.00 USD
Availability: InStock
Rating: 4.2 (5 reviews)

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ASA 5555-X with SW, 8GE Data, 1GE Mgmt, AC, 3DES/AES

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ASA5555-K9 Overview

ASA5555-K9 is a high-performance, rack-mounted firewall appliance engineered for enterprise and branch office deployments. It provides a robust security foundation with multiple high-speed LAN, WAN, and SFP ports, coupled with built-in support for advanced security services such as IPS, antivirus, web filtering, and VPN.

Designed to meet the demands of both SMB and large enterprise environments, ASA5555-K9 delivers exceptional throughput and reliable performance with redundant AC power supplies. Its versatile management options—offering CLI, GUI, SNMP, and centralized configuration and reporting—along with support for high availability and clustering, make it ideally suited for scalable, mission-critical network security deployments.

ASA5555-K9 price is $7,462.00, a 70.1% saving from the Cisco list price of $24,995.00. ASA5555-K9 is in stock and available for next-day dispatch. (terms applied)

Request bulk order quote for ASA5555-K9 for additional pricing. Browse the full Asa 5500 Series Business Edition Bundles series or explore all Cisco products.

ASA5555-K9 Specifications

Product Type: Firewall Appliance
Architecture: Rack-mount
Deployment Type: Enterprise / Branch Office
Use Case: VPN / Secure Access / UTM
Firewall Layer Supported: Layer 3 / Layer 4 / Layer 7
Power Source: AC Power Supply
Redundant Power Supply Supported: Yes
Firewall Throughput: 7 Gbps
Threat Protection Throughput: 3 Gbps
IPS Throughput: 2 Gbps
VPN Throughput: 1.5 Gbps
Supported Applications: 50
Centralized Configuration & Reporting: Cisco Adaptive Security Device Manager
Feature: High Availability
Concurrent Sessions: 500000
Maximum Concurrent Sessions: 1000000
Users/Nodes: Unlimited
Integrated I/O: 4
New Sessions Per Second: 50000
Supported VPN Types: IPSec / SSL VPN
Routing Protocols Supported: OSPF / BGP / RIP / Static Routing
Security Services: Antivirus / Web Filtering / Application Control / IPS / VPN
High Availability: Active-Passive
Interfaces: RJ-45 / SFP
WAN Ports: 2 WAN
LAN Ports: 8 LAN Ports
Switch Ports: Yes
POE Ports: No
Management Options: CLI / GUI / SNMP
Logging & Monitoring: Built-in / Syslog
Firewall Policies Supported: 1000
Users Supported: Unlimited
Memory: 8 GB
Flash Storage: 128 GB
Expansion Slots: SFP
Form Factor: Rack-mount
Rack Units: 2 RU
Device Type: NGFW
Product Name: Cisco ASA5555-K9 Adaptive Security Appliance
Height: 3.5 inches
Width: 17 inches
Depth: 18 inches
Weight: 40 lbs

Quality Certifications

To get the detailed certification, please go to the Compliance Center.

Product Comparison Table

	ASA5555-K9	ASA5585-S20-K7	ASA5525-DC-K8	ASA5585-S60-2A-K8	ASA5585-S40-2D-K9
Architecture	Rack-mount	Rack-mount	Rack-mount	Chassis	Rack-mount
Centralized Configuration & Reporting	Cisco Adaptive Security Device Manager	Yes	Cisco Security Manager	Cloud / CLI / GUI / REST API / SNMP	Yes
Concurrent Sessions	500000	2 Million	100,000	N/A	1,000,000
Deployment Type	Enterprise / Branch Office	Enterprise / Data Center / Branch Office	Enterprise / Data Center / Branch Office	Enterprise / Data Center	Enterprise / Data Center / Branch Office
Depth	18 inches	17 inches	18.5 inches	N/A	18.7 inches
Device Type	NGFW	NGFW	NGFW	NGFW	NGFW
Expansion Slots	SFP	SFP	SFP	SFP	SFP
Feature	High Availability	Comprehensive threat intelligence integration	High Availability, Clustering, Advanced Threat Protection	High availability, clustering	Next-Generation Firewall with Integrated IPS, Antivirus, Web Filtering, and VPN
Firewall Layer Supported	Layer 3 / Layer 4 / Layer 7	Layer 3 / Layer 7	Layer 3, Layer 4, Layer 7	Layer 3 / Layer 4 / Layer 7	Layer 3 / Layer 4 / Layer 7
Firewall Policies Supported	1000	500	N/A	N/A	N/A
Firewall Throughput	7 Gbps	20 Gbps	2.5 Gbps	60 Gbps	40 Gbps
Flash Storage	128 GB	128 GB	128 GB	128 GB SSD	64 GB
Form Factor	Rack-mount	2 RU	1 RU	Chassis	1 RU
Height	3.5 inches	3.5 inches	1.75 inches	N/A	1.75 inches
High Availability	Active-Passive	Active-Passive	Active-Passive	Active-Passive	Active-Passive
IPS Throughput	2 Gbps	10 Gbps	750 Mbps	N/A	N/A
Integrated I/O	4	4	8	N/A	N/A
Interfaces	RJ-45 / SFP	RJ-45 / SFP	RJ-45, SFP	RJ-45 / SFP	SFP
LAN Ports	8 LAN Ports	8 LAN Ports	8 LAN Ports	4 LAN Ports	N/A
Logging & Monitoring	Built-in / Syslog	Built-in / Syslog / Cloud Logging	Built-in, Syslog	Built-in / Syslog	Built-in / Syslog
Management Options	CLI / GUI / SNMP	Cloud / CLI / GUI / SNMP	CLI, GUI, SNMP	Cloud / CLI / GUI / REST API / SNMP	CLI / GUI / SNMP
Maximum Concurrent Sessions	1000000	2.5 Million	150,000	N/A	1,000,000
Memory	8 GB	16 GB	8 GB	16 GB	16 GB
New Sessions Per Second	50000	50,000	10,000	N/A	N/A
POE Ports	No	No	No	No	No
Power Source	AC Power Supply	AC Power Supply	AC Power Supply with Redundancy	AC Power Supply	AC Power Supply
Product Name	Cisco ASA5555-K9 Adaptive Security Appliance	ASA5585-S20-K7	ASA5525-DC-K8	ASA5585-S60-2A-K8	ASA5585-S40-2D-K9
Product Type	Firewall Appliance	Firewall Appliance	Firewall Appliance	Firewall Appliance	Firewall Appliance
Rack Units	2 RU	2 RU	1 RU	4 RU	1 RU
Redundant Power Supply Supported	Yes	Yes	Yes	Yes	Yes
Routing Protocols Supported	OSPF / BGP / RIP / Static Routing	OSPF / BGP / 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 / VPN	Antivirus / Web Filtering / Application Control / IPS / VPN	Antivirus, Web Filtering, Application Control, IPS, VPN	Antivirus / Web Filtering / Application Control / IPS / VPN	Antivirus / Web Filtering / Application Control / IPS / VPN
Supported Applications	50	500	N/A	N/A	N/A
Supported VPN Types	IPSec / SSL VPN	IPSec / SSL VPN	IPSec, SSL VPN	IPSec / SSL VPN	IPSec / SSL VPN
Switch Ports	Yes	Yes	Yes	No	No
Threat Protection Throughput	3 Gbps	15 Gbps	N/A	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 / UTM
Users Supported	Unlimited	Unlimited	N/A	N/A	N/A
Users/Nodes	Unlimited	Unlimited	Unlimited	N/A	Unlimited
VPN Throughput	1.5 Gbps	5 Gbps	1.0 Gbps	10 Gbps	N/A
WAN Ports	2 WAN	2 WAN	2 WAN	2 WAN	2 WAN
Weight	40 lbs	35 lbs	21 lbs	N/A	30 lbs
Width	17 inches	17 inches	17.5 inches	N/A	17.3 inches

Reviews & Ratings

Avery Dalton

ASA 5555-X delivers robust security and high throughput, perfect for mid-sized enterprise networks.

Bennett Shaw

Reliable appliance with stable performance and minimal downtime.

Camille Foster

Professional-grade firewall with easy deployment and consistent results.

Dorian Hayes

Handles traffic loads efficiently while maintaining strong security.

Elise Monroe

Durable and dependable for critical network operations.

Questions & Answers

What is the Cisco ASA 5555-X (ASA5555-K9) firewall used for?

The Cisco ASA 5555-X is a next-generation enterprise firewall that delivers secure VPN connectivity, advanced threat prevention, and high-performance inspection for mid-sized to large networks.

What are the key hardware specifications of the ASA 5555-X?

The ASA 5555-X features eight Gigabit Ethernet data ports, one Gigabit Ethernet management port, AC power, and hardware acceleration for 3DES/AES encryption.

What throughput and performance can I expect from the ASA 5555-X?

The ASA 5555-X supports up to 3 Gbps of firewall throughput, up to 1 Gbps of IPS throughput, and up to 500 Mbps of VPN throughput with 3DES/AES acceleration.

Which encryption protocols does ASA 5555-X support?

The ASA 5555-X supports industry-standard 3DES and AES encryption with hardware acceleration, ensuring secure site-to-site and remote-access VPN tunnels.

Related Searches Asa 5500 Series Business Edition Bundles

ASA5555-K8 ASA5515-K9 ASA5512-K9 ASA5555-DC-K8 ASA5555-CU-2AC-K9 ASA5516-FPWR-K9 ASA5525-K9 ASA5525-K8

ASA5555-K9 Overview

ASA5555-K9 price is $7,462.00, a 70.1% saving from the Cisco list price of $24,995.00. ASA5555-K9 is in stock and available for next-day dispatch. (terms applied)

ASA5555-K9 Specifications

Product Type

Firewall Appliance

Architecture

Rack-mount

Deployment Type

Enterprise / Branch Office

Use Case

VPN / Secure Access / UTM

Firewall Layer Supported

Layer 3 / Layer 4 / Layer 7

Power Source

AC Power Supply

Redundant Power Supply Supported

Yes

Firewall Throughput

7 Gbps

Threat Protection Throughput

3 Gbps

IPS Throughput

2 Gbps

VPN Throughput

1.5 Gbps

Supported Applications

Centralized Configuration & Reporting

Cisco Adaptive Security Device Manager

Feature

High Availability

Concurrent Sessions

500000

Maximum Concurrent Sessions

1000000

Users/Nodes

Unlimited

Integrated I/O

New Sessions Per Second

50000

Supported VPN Types

IPSec / SSL VPN

Routing Protocols Supported

OSPF / BGP / RIP / Static Routing

Security Services

Antivirus / Web Filtering / Application Control / IPS / VPN

High Availability

Active-Passive

Interfaces

RJ-45 / SFP

WAN Ports

2 WAN

LAN Ports

8 LAN Ports

Switch Ports

Yes

POE Ports

Management Options

CLI / GUI / SNMP

Logging & Monitoring

Built-in / Syslog

Firewall Policies Supported

1000

Users Supported

Unlimited

Memory

8 GB

Flash Storage

128 GB

Expansion Slots

SFP

Form Factor

Rack-mount

Rack Units

2 RU

Device Type

NGFW

Product Name

Cisco ASA5555-K9 Adaptive Security Appliance

Height

3.5 inches

Width

17 inches

Depth

18 inches

Weight

40 lbs