What high availability options are supported?

The ASA5545-CU-2AC-K9 supports active/standby failover with stateful session synchronization to ensure seamless security service continuity.

Which management interfaces are available?

You can manage the appliance via the ASDM GUI, CLI over console or SSH on the 1 GbE management port, and standard SNMP for monitoring.

What software license and virtual context support does it include?

It includes the Context Unlimited (CU) license for unlimited virtual firewalls and uses Cisco Smart Licensing for flexible, centralized license management.

What are the hardware specifications and form factor?

The unit is a 1 RU rack-mountable appliance measuring 17.5 × 14 × 1.75 inches, weighing 12 lbs, and equipped with dual hot-swappable AC power supplies.

What VPN capabilities does the ASA5545-CU-2AC-K9 support?

It supports site-to-site IPsec VPN, remote-access SSL VPN (AnyConnect), and clientless SSL VPN with capacity for up to 2,500 peers.

How do I update the ASA5545 firmware?

Use Cisco ASDM or CLI to upload the new ASA OS image via TFTP/FTP/SFTP, configure the boot variable to the new image, and reload the appliance.

What deployment scenarios is this firewall ideal for?

It’s ideal for SMB and enterprise branch offices requiring mid-range throughput, integrated VPN, advanced threat prevention, and scalable multi-tenancy.

What warranty and support options are available?

The appliance includes a 90-day limited hardware warranty and a 90-day software entitlement. Cisco SMARTnet can be added for 24/7 technical support and software updates.

How many concurrent connections can it handle?

It supports up to 500,000 simultaneous connections and can establish up to 100,000 new connections per second for high-traffic environments.

What is the typical power consumption?

Typical power consumption is around 120 W, and redundancy is provided by dual auto-ranging 100–240 VAC power supplies.

How is high availability configured on the ASA5545?

Connect both units via their dedicated HA ports, enable failover in ASDM or CLI, assign primary/secondary roles, and synchronize configurations to achieve stateful redundancy.

Does the ASA5545-CU-2AC-K9 support SSL decryption and inspection?

Yes, it includes the ASA OS SSL Visibility feature for SSL/TLS decryption and inspection, enabling deep threat analysis of encrypted traffic.

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ASA5545-CU-2AC-K9

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SKU: ASA5545-CU-2AC-K9
Price: 13490.00 USD
Availability: InStock
Rating: 4.2 (5 reviews)

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ASA5545-CU-2AC-K9 Overview

ASA5545-CU-2AC-K9 is a high-performance, rack-mounted network security appliance engineered for enterprise and branch office deployments. It delivers robust firewall throughput around 3.2 Gbps, and integrates comprehensive security services such as IPS, antivirus, web filtering, and VPN support to protect modern network environments while maintaining low latency and high reliability.

This appliance features a versatile port configuration with multiple LAN and WAN interfaces including RJ-45 and SFP ports, complemented by a redundant AC power supply and an active-passive high availability design. Its management is streamlined via CLI, GUI, and centralized tools, making it ideal for scalable, secure deployments in dynamic cloud, enterprise, and branch office scenarios.

ASA5545-CU-2AC-K9 price is $13,490.00, a 44.9% saving from the Cisco list price of $24,495.00. ASA5545-CU-2AC-K9 is in stock and available for next-day dispatch. (terms applied)

Request bulk order quote for ASA5545-CU-2AC-K9 for additional pricing. Browse the full Cisco Asa 5500 Series series or explore all Cisco products.

ASA5545-CU-2AC-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: 3.2 Gbps
Threat Protection Throughput: N/A
IPS Throughput: 1.25 Gbps
VPN Throughput: 1.2 Gbps
Supported Applications: N/A
Centralized Configuration & Reporting: Cisco ASDM & Cisco Security Manager
Feature: Advanced Malware Protection
Concurrent Sessions: 150,000
Maximum Concurrent Sessions: 300,000
Users/Nodes: Unlimited
Integrated I/O: N/A
New Sessions Per Second: 30,000
Supported VPN Types: IPSec, SSL VPN, L2TP
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, Centralized, REST API, SNMP
Logging & Monitoring: Built-in, Syslog, Cloud Logging
Firewall Policies Supported: 5000
Users Supported: 10,000
Memory: 8 GB
Flash Storage: 64 GB
Expansion Slots: SFP
Form Factor: 1 RU
Rack Units: 1 RU
Device Type: NGFW
Product Name: Cisco ASA5545-CU-2AC-K9
Height: 1.75 inches
Width: 17 inches
Depth: 19 inches
Weight: 25 lbs

ASA5545-CU-2AC-K9 Use Case

High-Throughput Data Center Perimeter Security with ASA 5545-X

In a multi-tenant data center hosting critical enterprise applications, the Cisco ASA5545-CU-2AC-K9 (ASA 5545-X) delivers 14 Gbps of firewall throughput and AES-encrypted VPN termination. By deploying this platform at the perimeter, the IT security team enforces segmentation between production, development and management VLANs, mitigating lateral threats and ensuring uninterrupted service. Benefit: Achieves carrier-class performance with enterprise-grade encryption, reduces risk of data breaches and simplifies compliance with industry regulations.

Secure Branch-Office VPN Connectivity for Distributed Enterprises

A global manufacturing firm uses ASA 5545-X devices to terminate dozens of site-to-site VPN tunnels over 3DES/AES, leveraging the ASA5545-CU-2AC-K9’s 14 Gbps data ports and 1 GbE management interface. In this scenario, branch offices automatically establish encrypted links to the corporate HQ, supporting ERP and VoIP traffic without performance degradation. Benefit: Delivers consistent, high-capacity encryption and centralized policy management, boosting operational efficiency and ensuring uninterrupted secure communications across 50+ locations.

PCI DSS-Compliant Hybrid Cloud Segmentation with Cisco ASA5545-X

A financial services organization implements the ASA5545-CU-2AC-K9 in a hybrid cloud environment to enforce strict DMZ segmentation between public-facing web servers and back-end transaction databases. Utilizing the device’s dual power supplies, high-availability failover and AES encryption, the security team meets PCI DSS requirements for data isolation and audit trails. Benefit: Provides robust, standards-based firewalling and VPN encryption, streamlines audit readiness and maintains 24×7 uptime for mission-critical payment processing.

Quality Certifications

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

Product Comparison Table

	ASA5545-CU-2AC-K9	ASA5520-BUN-K9	ASA5545-K9	ASA5540-BUN-K9	ASA5510-SSL100-K9
Architecture	Rack-mount	Rack-mount	Rack-mount	Rack-mount	Rack-mount
Centralized Configuration & Reporting	Cisco ASDM & Cisco Security Manager	Cisco Security Manager	Cisco ASDM / FMC	Cisco Security Manager	N/A
Concurrent Sessions	150,000	100,000	1000000	250000	50000
Deployment Type	Enterprise / Branch Office	Enterprise / Branch Office	Enterprise / Branch Office	Enterprise / Branch Office	Enterprise / Branch Office
Depth	19 inches	19.5 inches	16.5 inches	18 inches	18 inches
Device Type	NGFW	NGFW	NGFW	NGFW	NGFW
Expansion Slots	SFP	SFP	SFP	SFP	N/A
Feature	Advanced Malware Protection	Advanced threat protection, stateful inspection, VPN support	Integrated Threat Defense	Next-Generation Firewall with integrated IPS, VPN, and content security	Integrated SSL VPN
Firewall Layer Supported	Layer 3, Layer 4, Layer 7	Layer 3 / Layer 4	Layer 7	Layer 3 / Layer 4	Layer 3
Firewall Policies Supported	5000	Unlimited	N/A	N/A	N/A
Firewall Throughput	3.2 Gbps	500 Mbps	6.4 Gbps	1.5 Gbps	150 Mbps
Flash Storage	64 GB	16 GB	32 GB	16 GB	8 GB
Form Factor	1 RU	1 RU	Rack-mount	Rack-mount	1 RU
Height	1.75 inches	1.73 inches	1.75 inches	1.75 inches	1.75 inches
High Availability	Active-Passive	Active-Passive	Active-Passive	Active-Passive	Active-Passive
IPS Throughput	1.25 Gbps	150 Mbps	N/A	400 Mbps	N/A
Integrated I/O	N/A	N/A	8	N/A	N/A
Interfaces	RJ-45, SFP	RJ-45 / SFP	RJ-45 / SFP	RJ-45 / SFP	RJ-45
LAN Ports	8 LAN Ports	4 LAN Ports	8 LAN Ports	8 LAN Ports	8 LAN Ports
Logging & Monitoring	Built-in, Syslog, Cloud Logging	Built-in / External	Built-in / Syslog / Cloud Logging	Built-in / Syslog	Built-in
Management Options	CLI, GUI, Centralized, REST API, SNMP	CLI / GUI / SNMP	CLI / GUI / SNMP / REST API	CLI / GUI / SNMP	CLI / GUI / SNMP
Maximum Concurrent Sessions	300,000	250,000	1000000	250000	50000
Memory	8 GB	4 GB	8 GB	8 GB	1 GB
New Sessions Per Second	30,000	10,000	N/A	3000	N/A
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	Cisco ASA5545-CU-2AC-K9	Cisco ASA5520-BUN-K9	ASA5545-K9	ASA5540-BUN-K9	ASA5510-SSL100-K9
Product Type	Firewall Appliance	Firewall Appliance	Firewall Appliance	Firewall Appliance	Firewall Appliance
Rack Units	1 RU	1 RU	1 RU	1 RU	1 RU
Redundant Power Supply Supported	Yes	Yes	Yes	Yes	No
Routing Protocols Supported	OSPF, BGP, RIP, Static Routing	OSPF / BGP / RIP / Static Routing	OSPF / BGP / RIP / Static Routing	OSPF / BGP / RIP / Static Routing	OSPF / RIP / Static Routing
Security Services	Antivirus, Web Filtering, Application Control, IPS, VPN	Antivirus / Web Filtering / IPS / VPN	Antivirus / Web Filtering / IPS / VPN	Antivirus / Web Filtering / Application Control / IPS / VPN	Antivirus / Web Filtering / IPS / VPN
Supported Applications	N/A	N/A	N/A	N/A	N/A
Supported VPN Types	IPSec, SSL VPN, L2TP	IPSec / SSL VPN	IPSec / SSL VPN	IPSec / SSL VPN / L2TP / PPTP	IPSec / SSL VPN
Switch Ports	Yes	No	Yes	No	No
Threat Protection Throughput	N/A	150 Mbps	3.0 Gbps	N/A	N/A
Use Case	VPN / Secure Access / UTM	VPN / Secure Access / UTM	VPN / UTM	VPN / Secure Access / UTM	VPN / Secure Access / UTM
Users Supported	10,000	N/A	N/A	N/A	N/A
Users/Nodes	Unlimited	Unlimited	N/A	Unlimited	N/A
VPN Throughput	1.2 Gbps	300 Mbps	2.8 Gbps	1 Gbps	100 Mbps
WAN Ports	2 WAN	2 WAN	2 WAN	2 WAN	2 WAN
Weight	25 lbs	15 lbs	15 lbs	30 lbs	14 lbs
Width	17 inches	17.3 inches	17.3 inches	19 inches	17 inches

Reviews & Ratings

Zane Monroe

ASA 5545-X with dual AC delivers enterprise-grade firewall performance with consistent throughput.

Alina Quinn

Handles high-demand network traffic reliably and efficiently.

Blair Hayes

Professional-grade appliance with minimal maintenance requirements.

Cyrus Carter

Stable, durable, and ideal for critical applications.

Dahlia Lane

Excellent deployment experience with reliable security features.

Questions & Answers

What is the Cisco ASA5545-CU-2AC-K9?

The Cisco ASA5545-CU-2AC-K9 is a next-generation firewall appliance featuring 14 1GbE data ports, one 1GbE management port, dual hot-swappable AC power supplies, and hardware-accelerated 3DES/AES encryption for advanced threat protection.

What are the key features of the ASA5545-CU-2AC-K9?

It delivers up to 3.5 Gbps firewall throughput, 1 Gbps IPsec VPN throughput, unlimited security contexts, active/standby high availability, integrated ASDM/CLI management, and Cisco Smart Licensing.

How many data and management ports does it include?

It provides 14 10/100/1000BASE-T data ports for network traffic and one dedicated 1 GbE management port for out-of-band administration.

What is the encryption performance of the ASA5545-CU-2AC-K9?

With hardware-based 3DES/AES acceleration, it supports up to 1 Gbps of IPsec VPN throughput while maintaining wire-speed firewall performance.

Related Searches Cisco Asa 5500 Series

ASA5555-CU-2AC-K9 ASA5525-CU-K9 ASA5545-K9 ASA5515-K9 ASA5512-K9 ASA5555-K9 ASA5525-K7 ASA5516-FPWR-K9

ASA5545-CU-2AC-K9 Overview

Request bulk order quote for ASA5545-CU-2AC-K9 for additional pricing. Browse the full Cisco Asa 5500 Series series or explore all Cisco products.

ASA5545-CU-2AC-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

3.2 Gbps

Threat Protection Throughput

N/A

IPS Throughput

1.25 Gbps

VPN Throughput

1.2 Gbps

Supported Applications

N/A

Centralized Configuration & Reporting

Cisco ASDM & Cisco Security Manager

Feature

Advanced Malware Protection

Concurrent Sessions

150,000

Maximum Concurrent Sessions

300,000

Users/Nodes

Unlimited

Integrated I/O

N/A

New Sessions Per Second

30,000

Supported VPN Types

IPSec, SSL VPN, L2TP

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, Centralized, REST API, SNMP

Logging & Monitoring

Built-in, Syslog, Cloud Logging

Firewall Policies Supported

5000

Users Supported

10,000

Memory

8 GB

Flash Storage

64 GB

Expansion Slots

SFP

Form Factor

1 RU

Rack Units

1 RU

Device Type

NGFW

Product Name

Cisco ASA5545-CU-2AC-K9

Height

1.75 inches

Width

17 inches

Depth

19 inches

Weight

25 lbs