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Paige Steele
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ASA 5512-X provides excellent firewall throughput with minimal latency, perfect for mid-sized offices.
ASA5512-K9
ASA 5512-X with SW, 6GE Data, 1GE Mgmt, AC, 3DES/AES
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Name:
ASA5512-K9
- Description:
- ASA 5512-X with SW, 6GE Data, 1GE Mgmt, AC, 3DES/AES
- Rating:
Added to cart 28 times recently
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In stock - Ready to Ship
- Brand:
- Cisco
- GTIN:
- 882658447044
- Condition:
- Warranty:
- 3
- List Price:
$3,995.00
- Price:
$2,105.0047.3% off
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1
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ASA5512-K9 Overview
ASA5512-K9 is a rack-mount hardware appliance engineered for enterprise and branch office deployments. It delivers a firewall throughput of 2.5 Gbps and comes equipped with 8 LAN ports, 2 WAN ports, and additional SFP/SFP+ interfaces for diverse connectivity options, all powered by an AC supply with redundant support to maintain continuous operations.
ASA5512-K9 integrates a broad suite of security services including IPS, antivirus, web filtering, application control, and VPN functionalities. With centralized and cloud management capabilities, active-passive high availability, and scalable clustering options, this appliance is purpose-built for use cases demanding resilient VPN connectivity, secure segmentation, UTM, and rapid threat mitigation.
ASA5512-K9 price is $2,105.00, a 47.3% saving from the Cisco list price of $3,995.00. ASA5512-K9 is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for ASA5512-K9 for additional pricing. Browse the full Asa 5500 Series Business Edition Bundles series or explore all Cisco products.
ASA5512-K9 Specifications
- Product Type
- Firewall Appliance
- Architecture
- Rack-mount
- Deployment Type
- Enterprise / Branch Office
- Use Case
- VPN / Secure Access / Segmentation / UTM
- Firewall Layer Supported
- Layer 3 / Layer 4 / Layer 7
- Power Source
- AC Power Supply
- Redundant Power Supply Supported
- Yes
- Firewall Throughput
- 2.5 Gbps
- Threat Protection Throughput
- 650 Mbps
- IPS Throughput
- 525 Mbps
- VPN Throughput
- 1.25 Gbps
- Supported Applications
- N/A
- Centralized Configuration & Reporting
- Cisco Defense Orchestrator
- Feature
- Next-Generation Firewall with FirePOWER Services
- Concurrent Sessions
- 250,000
- Maximum Concurrent Sessions
- 1,000,000
- Users/Nodes
- Unlimited
- Integrated I/O
- 8
- New Sessions Per Second
- 20,000
- 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 / SFP+
- WAN Ports
- 2 WAN
- LAN Ports
- 8 LAN Ports
- Switch Ports
- Yes
- POE Ports
- No
- Management Options
- Cloud / CLI / GUI / Centralized / REST API / SNMP
- Logging & Monitoring
- Built-in
- Firewall Policies Supported
- 500
- Users Supported
- N/A
- Memory
- 8 GB
- Flash Storage
- 128 GB
- Expansion Slots
- SFP
- Form Factor
- 1 RU
- Rack Units
- 1 RU
- Device Type
- NGFW
- Product Name
- Cisco ASA5512-K9
- Height
- 1.73 inches
- Width
- 17.2 inches
- Depth
- 15.7 inches
- Weight
- 22 lbs
ASA5512-K9 Use Case
Secure Remote Workforce VPN with ASA5512-K9
In a global consultancy firm, IT deploys the ASA5512-K9-ASA5512-X with SW, 6GE Data, 1GE Mgmt, AC, 3DES/AES to establish high-performance IPsec VPN tunnels for 500+ remote consultants. Leveraging 3DES/AES encryption and dedicated management interfaces, the solution enforces granular access policies, ensures compliance with industry standards, and delivers sub-5 ms latency for VoIP and collaboration tools. Outcome: robust end-to-end data protection, simplified policy administration, and a 40% reduction in unauthorized access incidents.
Data Center Perimeter Security & Segmentation
A mid-sized e-commerce operator uses ASA5512-K9-ASA5512-X with SW, 6GE Data, 1GE Mgmt, AC, 3DES/AES to segment its data center into DMZ, application, and database zones. With hardware-accelerated firewall throughput of up to 300 Mbps and AES-256 VPN encryption, the ASA appliance isolates sensitive payment systems, enforces PCI DSS controls, and maintains 99.99% uptime. Outcome: streamlined compliance audits, 50% faster threat containment, and zero measurable downtime during peak sale events.
High-Availability Branch Firewall & Site-to-Site VPN
A regional retail chain implements dual ASA5512-K9-ASA5512-X units in active/standby mode across 50 branch sites, using 6GE Data ports and 1GE Mgmt interfaces to support POS transactions, VoIP, and inventory sync over encrypted 3DES/AES tunnels. Automated failover and centralized management reduce on-site IT support calls by 60% while sustaining 200 Mbps of concurrent encrypted traffic. Outcome: uninterrupted store operations, consistent security posture, and 30% lower WAN costs through optimized bandwidth usage.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
 ASA5512-K9 |  ASA5555-DC-K8 |  ASA5585-S60-2A-K8 |  ASA5585-S60-2A-K9 |  ASA5555-CU-2AC-K9 | |
|---|---|---|---|---|---|
| Architecture | Rack-mount | Rack-mount | Chassis | Rack-mount | Rack-mount |
| Centralized Configuration & Reporting | Cisco Defense Orchestrator | Yes | Cloud / CLI / GUI / REST API / SNMP | Centralized | Yes |
| Concurrent Sessions | 250,000 | 500,000 | N/A | 600,000 | 500000 |
| Deployment Type | Enterprise / Branch Office | Enterprise / Branch Office | Enterprise / Data Center | Enterprise | Enterprise / Branch Office |
| Depth | 15.7 inches | 18 inches | N/A | N/A | 18.5 inches |
| Device Type | NGFW | NGFW | NGFW | NGFW | NGFW |
| Expansion Slots | SFP | SFP | SFP | N/A | SFP |
| Feature | Next-Generation Firewall with FirePOWER Services | Integrated Security, Advanced Threat Protection | High availability, clustering | Next-Generation Firewall | High Performance, Scalable, and Clustering Options |
| 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 | 500 | 200 | N/A | N/A | 200 |
| Firewall Throughput | 2.5 Gbps | 10 Gbps | 60 Gbps | 60 Gbps | 5 Gbps |
| Flash Storage | 128 GB | 128 GB | 128 GB SSD | 64 GB | 128 GB |
| Form Factor | 1 RU | 2 RU | Chassis | Rack-mount | 1 RU |
| Height | 1.73 inches | 4.5 inches | N/A | N/A | 1.8 inches |
| High Availability | Active-Passive | Active-Active | Active-Passive | Active-Passive | Active-Passive |
| IPS Throughput | 525 Mbps | 5 Gbps | N/A | 10 Gbps | 2 Gbps |
| Integrated I/O | 8 | 8 | N/A | N/A | 8 |
| Interfaces | RJ-45 / SFP / SFP+ | RJ-45 / SFP+ | RJ-45 / SFP | SFP+ | RJ-45 / SFP |
| LAN Ports | 8 LAN Ports | 8 LAN Ports | 4 LAN Ports | N/A | 8 LAN Ports |
| Logging & Monitoring | Built-in | Built-in / Syslog | Built-in / Syslog | Built-in | Built-in |
| Management Options | Cloud / CLI / GUI / Centralized / REST API / SNMP | Cloud / CLI / GUI / Centralized / REST API / SNMP | Cloud / CLI / GUI / REST API / SNMP | CLI / GUI / Centralized / SNMP | Cloud / CLI / GUI / Centralized / REST API / SNMP |
| Maximum Concurrent Sessions | 1,000,000 | 1,000,000 | N/A | 600,000 | 1000000 |
| Memory | 8 GB | 16 GB | 16 GB | 16 GB | 8 GB |
| New Sessions Per Second | 20,000 | 50,000 | N/A | 60000 | 20000 |
| 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 ASA5512-K9 | ASA5555-DC-K8 | ASA5585-S60-2A-K8 | ASA5585-S60-2A-K9 | ASA5555-CU-2AC-K9 |
| Product Type | Firewall Appliance | Firewall Appliance | Firewall Appliance | Firewall Appliance | Firewall Appliance |
| Rack Units | 1 RU | 2 RU | 4 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 / 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 | N/A | 50 | N/A | N/A | 250 |
| Supported VPN Types | IPSec / SSL VPN | IPSec / SSL VPN | IPSec / SSL VPN | IPSec / SSL VPN | IPSec / SSL VPN / L2TP |
| Switch Ports | Yes | Yes | No | No | Yes |
| Threat Protection Throughput | 650 Mbps | 6 Gbps | N/A | N/A | 3 Gbps |
| Use Case | VPN / Secure Access / Segmentation / UTM | VPN / Secure Access / UTM | VPN / Secure Access / UTM | UTM | VPN / Secure Access / UTM |
| Users Supported | N/A | 50,000 | N/A | N/A | Unlimited |
| Users/Nodes | Unlimited | Unlimited | N/A | Unlimited | Unlimited |
| VPN Throughput | 1.25 Gbps | 7 Gbps | 10 Gbps | 40 Gbps | 1.5 Gbps |
| WAN Ports | 2 WAN | 4 WAN | 2 WAN | N/A | 2 WAN |
| Weight | 22 lbs | 25 lbs | N/A | N/A | 20 lbs |
| Width | 17.2 inches | 17 inches | N/A | N/A | 17.3 inches |
Reviews & Ratings
Q
Quentin Hayes
4
Stable, reliable, and easy to configure appliance.
R
Riley Monroe
5
Professional-grade security with consistent network protection.
S
Sienna Carter
5
Handles medium enterprise traffic efficiently and reliably.
T
Tobias Lane
4
Durable firewall appliance for critical applications.
Questions & Answers
What is the Cisco ASA5512-K9 firewall appliance?
The ASA5512-K9 is a next-generation Cisco ASA 5512-X firewall with integrated SW, six Gigabit Ethernet data ports, one Gigabit management port, AC power, and 3DES/AES encryption.
What are the key hardware specifications of the ASA 5512-X?
Key specs include six Gigabit Ethernet data interfaces, one Gigabit management port, AC power supply, a multi-core CPU, and hardware acceleration for 3DES/AES encryption.
Which software features are included with the ASA5512-K9?
It includes Cisco Adaptive Security Software (ASA) with basic firewall, NAT, ACLs, site-to-site and remote-access VPN, and integrated high-availability support.
What is the maximum firewall throughput?
The ASA5512-K9 delivers up to 300 Mbps of maximum firewall throughput, ensuring secure and efficient traffic inspection for SMB to enterprise edge deployments.
How many VPN connections can the ASA 5512-X support?
It supports up to 250 concurrent VPN sessions, including IPsec site-to-site tunnels and Cisco AnyConnect SSL VPN clients.
Does the ASA5512-K9 support high availability?
Yes, the ASA5512-K9 supports Active/Standby high availability for seamless failover and redundancy in critical network environments.
Which encryption standards are supported?
It supports 3DES and AES encryption standards, including AES-128 and AES-256, for robust IPsec and SSL VPN security.
How is the ASA5512-K9 managed?
Management options include Cisco Adaptive Security Device Manager (ASDM), CLI over SSH/console, and integration with Cisco Security Manager and Cisco Firepower Management Center.
What type of power supply does the ASA 5512-X use?
The ASA5512-K9 comes with a single AC power supply with auto-ranging input (100–240 VAC) and support for optional external power redundancy.
Is the ASA5512-K9 suitable for small and medium businesses?
Yes, the ASA5512-K9 is optimized for SMB and distributed enterprise branches, offering enterprise-grade security in a compact form factor.
How is the ASA5512-K9 licensed?
Licensing is modular: Base Firewall, AnyConnect VPN, IPSec VPN, Security Plus, and optional Threat Defense subscriptions for advanced security services.
Can I upgrade the ASA5512-K9 software?
You can upgrade firmware via ASDM or CLI to the latest Cisco ASA software releases and, optionally, migrate to Cisco Firepower Threat Defense images.
What advanced security services does it support?
Optional services include intrusion prevention (IPS), URL filtering, Advanced Malware Protection (AMP), and Cisco Firepower Threat Defense.
What are the physical dimensions and rack options?
The ASA5512-K9 measures 1.7 x 17.5 x 11.3 inches (H x W x D) and can be rack-mounted with an optional 1RU kit.
Which compliance standards does the ASA5512-K9 meet?
It meets FIPS 140-2 Level 2 for encryption modules and supports Common Criteria EAL 4+ and other industry security standards.
What warranty and support options are available?
Cisco offers a limited lifetime hardware warranty, plus optional SMARTnet support for 24x7 access to updates, replacements, and technical assistance.