United States$5,000,000+
Inventory Delivered By
N
Nathan Brooks
5
AX bundle delivered strong application and security performance. Good value for branches.
ISR4331-AX/K9
Cisco ISR 4331 AX Bundle w/ APP,SEC lic
FEATURED DEAL
Name:
ISR4331-AX/K9
- Description:
- Cisco ISR 4331 AX Bundle w/ APP,SEC lic
- Rating:
Added to cart 28 times recently
- Availability:
In stock - Ready to Ship
- Brand:
- Cisco
- GTIN:
- 659821191628
- Condition:
- Warranty:
- 3
- List Price:
$7,851.00
- Price:
$2,358.0070% off
Quantity:
1
Business price:
3 Year Extended Warranty
Same-day Shipping
14-Day Money Back Guarantee
Shipping:
Payment:
3 Year Extended Warranty
Same-day Shipping
14-Day Money Back Guarantee
Need Additional Discount on Product?
Request a quote below - Get Exclusive Pricing and Support.
Shipping:
Payment:
TRUSTED, TRIED, PROVEN
Officially Accredited
& Verified By
Next-Gen IT
Solutions Powered By
ISR4331-AX/K9 Overview
ISR4331-AX/K9 is a high-performance enterprise router built on a modular architecture that integrates advanced security, voice, and WAN optimization services into a single platform. It supports flexible power options with an AC power supply and redundant configurations, and it features configurable WAN/LAN interfaces, including dual Gigabit Ethernet ports, to meet the diverse connectivity needs of branch and enterprise environments.
This router delivers robust VPN capabilities with IPSec, SSL VPN, DMVPN, and FlexVPN support while ensuring high throughput performance and low latency for demanding applications. With integrated services, modular expansion slots for additional interface modules, built-in firewall and intrusion prevention features, and high availability support, the ISR4331-AX/K9 is ideally suited for secure and resilient branch connectivity and enterprise deployments.
ISR4331-AX/K9 price is $2,358.00, a 70% saving from the Cisco list price of $7,851.00. ISR4331-AX/K9 is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for ISR4331-AX/K9 for additional pricing. Browse the full Router Isr 4000 series or explore all Cisco products.
ISR4331-AX/K9 Specifications
- Power Source
- AC Power Supply
- Form Factor
- Rack-mount
- Ethernet Technology
- 10/100/1000
- Memory
- 4 GB
- Weight
- N/A
- Height
- N/A
- Depth
- N/A
- Width
- N/A
- Flash Memory
- 512 MB
- Product Type
- Enterprise Router
- WAN Configuration
- Dual WAN
- WAN Ports
- 2 WAN
- Wi-Fi Standard
- N/A
- Connectivity Type
- Wired
- Wireless Support
- No
- Firewall Features
- Yes
- Management
- Managed
- QoS Features
- Supported
- Stacking Capability
- No
- 5G Support
- No
- Device Type
- Router
- VPN Support
- IPSec / SSL VPN / DMVPN / FlexVPN
- High Availability Support
- Supported
- Broadband
- N/A
- Integrated Services
- Voice / Video / WAN Optimization
- LAN Ports
- 4 LAN Ports
- EMC
- FCC / CE
- Telecom
- TIA/EIA
- Network Protocols
- IPv4 / IPv6
- Expansion Slots
- EHWIC / NIM
- Compliance Standards
- FCC / CE / UL
- Remote Management
- SSH / Telnet / SNMP
- Built-in Security Features
- Firewall / Intrusion Prevention / Malware Protection
- Speed/Capacity
- Gigabit
- Modular Slots Available
- 3+ Slots
- Interface Ports
- RJ-45 / SFP
- Routing Protocols
- OSPF / BGP / EIGRP / MPLS / RIP / Static Routing
- Architecture
- Fixed / Modular
- Use Case
- Enterprise / Branch
- Throughput Capacity
- 0.15 Gbps
- Power
- 65 Watts
- Features
- VPN / IPv6 Compatible / Firewall / WAN Optimization / Voice / Video
- Safety
- UL / IEC
- Product Name
- Cisco ISR4331-AX/K9
ISR4331-AX/K9 Use Case
Secure Multi-Branch Connectivity for Distributed Enterprises
In a distributed enterprise with 50+ branch offices, the Cisco ISR4331-AX/K9 AX Bundle w/ APP,SEC license enables secure, high-performance VPN tunnels using DMVPN and IPsec. By centralizing routing, application optimization, and advanced threat defense on a single platform, IT teams achieve sub-millisecond fail-over, 1 Gbps encrypted throughput, and streamlined policy enforcement. The outcome is consistent, low-latency access to corporate applications and cloud services while maintaining end-to-end security and reducing total cost of ownership.
High-Performance SD-WAN Orchestration for Hybrid Cloud Workloads
For organizations migrating critical workloads to AWS, Azure, and private data centers, the ISR4331-AX/K9 with APP,SEC lic delivers integrated SD-WAN capabilities, dynamic path selection, and application-aware routing. IT operators leverage real-time analytics and automated fail-over across MPLS, broadband, and LTE links to guarantee 99.99% uptime for ERP, VoIP, and video collaboration. This unified solution boosts application performance, simplifies cloud connectivity, and enforces security policies end-to-end, driving measurable productivity gains.
Unified Threat Management in Retail and Hospitality Networks
In a multi-site retail or hospitality chain, deploying the Cisco ISR4331-AX/K9 with APP,SEC license provides a consolidated platform for firewall, intrusion prevention, URL filtering, and malware defense. The device inspects up to 300,000 concurrent sessions and 600 Mbps of threat traffic, while QoS ensures seamless point-of-sale transactions and guest Wi-Fi performance. Retail IT achieves PCI DSS compliance, real-time threat intelligence updates, and centralized policy management—protecting revenue streams and customer data with minimal operational overhead.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
 ISR4331-AX/K9 |  ISR4451-X-AX/K9 |  C1-CISCO4451/K9 |  ISR4351-DNA |  ISR4321-AXV/K9 | |
|---|---|---|---|---|---|
| 5G Support | No | No | No | No | No |
| Architecture | Fixed / Modular | Modular | Modular | Modular | Fixed |
| Broadband | N/A | N/A | N/A | N/A | N/A |
| Built-in Security Features | Firewall / Intrusion Prevention / Malware Protection | Firewall / Intrusion Prevention | Firewall, Intrusion Prevention, Malware Protection | Firewall / Intrusion Prevention / Malware Protection | Firewall / Intrusion Prevention / Malware Protection |
| Compliance Standards | FCC / CE / UL | FCC / CE | FCC, CE | FCC / CE | FCC, CE |
| Connectivity Type | Wired | Wired | Wired | Wired | Wired |
| Depth | N/A | 16.90 inches | 18 inches | N/A | 18.3 inches |
| Device Type | Router | Router | Router | Router | Router |
| EMC | FCC / CE | FCC / CE | N/A | N/A | CISPR22, FCC Part 15 |
| Ethernet Technology | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 |
| Expansion Slots | EHWIC / NIM | EHWIC / NIM | EHWIC / NIM | EHWIC | NIM / EHWIC |
| Features | VPN / IPv6 Compatible / Firewall / WAN Optimization / Voice / Video | VPN / VoIP / IPv6 Compatible / Firewall / MPLS / Syslog | VPN, VoIP, IPv6 Compatible, Firewall, MPLS | VPN / Firewall / Voice / Video / WAN Optimization | Mesh / VPN / VoIP / IPv6 Compatible / Firewall / MPLS |
| Firewall Features | Yes | Yes | Yes | Yes | Yes |
| Flash Memory | 512 MB | 512 MB | 2 GB | 256 MB | 256 MB |
| Form Factor | Rack-mount | Rack-mount | Rack-mount | Rack-mount | Rack-mount / Desktop |
| Height | N/A | 1.75 inches | 1.75 inches | N/A | 1.75 inches |
| High Availability Support | Supported | Supported | Supported | Supported | Supported |
| Integrated Services | Voice / Video / WAN Optimization | Voice / Video | Voice, Video, WAN Optimization | Voice / Video / WAN Optimization | Voice / Video / WAN Optimization |
| Interface Ports | RJ-45 / SFP | RJ-45 / SFP | RJ-45, SFP, Combo Ports | RJ-45 / SFP | RJ-45 / SFP |
| LAN Ports | 4 LAN Ports | 4 LAN Ports | Modular LAN | Modular LAN | 4 LAN Ports |
| Management | Managed | Managed | Managed | Managed | Managed |
| Memory | 4 GB | 4 GB | 4 GB | 4 GB | 512 MB |
| Modular Slots Available | 3+ Slots | 3 Slots | 3+ Slots | 2 Slots | 2 Slots |
| Network Protocols | IPv4 / IPv6 | IPv4 / IPv6 / MPLS | IPv4, IPv6 | IPv4 / IPv6 | IPv4, IPv6 |
| Power | 65 Watts | 350W | 250 W | 115W | 54 W |
| Power Source | AC Power Supply | AC Power Supply / Redundant | AC Power Supply / Redundant | AC Power Supply / Redundant | AC Power Supply / Redundant |
| Product Name | Cisco ISR4331-AX/K9 | Cisco ISR4451-X-AX/K9 | Cisco 4451 Integrated Services Router | Cisco ISR4351-DNA | Cisco ISR4321-AXV/K9 |
| Product Type | Enterprise Router | Enterprise Router | Enterprise Router | Enterprise Router | Enterprise Router |
| QoS Features | Supported | Supported | Supported | Supported | Supported |
| Remote Management | SSH / Telnet / SNMP | Cisco IOS XE CLI / SNMP / NetConf | CLI, SNMP, Telnet, SSH | CLI / SNMP / Cisco DNA Center | SSH, Telnet, SNMP |
| Routing Protocols | OSPF / BGP / EIGRP / MPLS / RIP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / BGP / EIGRP / MPLS / IS-IS / RIP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / BGP / EIGRP / MPLS / IS-IS / RIP / Static Routing |
| Safety | UL / IEC | UL / CSA | N/A | N/A | RoHS Compliant |
| Speed/Capacity | Gigabit | Gigabit | Gigabit | Gigabit | Gigabit |
| Stacking Capability | No | No | No | No | Yes |
| Telecom | TIA/EIA | N/A | N/A | N/A | TIA/EIA |
| Throughput Capacity | 0.15 Gbps | 2 Gbps | 2 Gbps | 1 Gbps | 200 Mbps |
| Use Case | Enterprise / Branch | Enterprise | Enterprise | Enterprise | Enterprise / Branch |
| VPN Support | IPSec / SSL VPN / DMVPN / FlexVPN | IPSec / DMVPN / FlexVPN / N/A | IPSec / SSL VPN / GRE / DMVPN / FlexVPN / N/A | IPSec / SSL VPN / DMVPN / FlexVPN / N/A | IPSec / SSL VPN / DMVPN / FlexVPN |
| WAN Configuration | Dual WAN | Dual WAN | Dual WAN | Dual WAN | Dual WAN |
| WAN Ports | 2 WAN | 2 WAN | Modular WAN | Modular WAN | 2 WAN |
| Weight | N/A | 17.6 lbs | 23 lbs | N/A | 13.2 lbs |
| Wi-Fi Standard | N/A | N/A | N/A | N/A | N/A |
| Width | N/A | 17.32 inches | 17.5 inches | N/A | 17.5 inches |
| Wireless Support | No | No | No | No | No |
Reviews & Ratings
P
Philip Warren
4
Stable throughput with security enabled. Easy initial setup.
J
Julian Price
5
Reliable ISR for growing networks. Performs as advertised.
T
Trevor Collins
3
Consistent performance and good feature set. Suitable for business use.
S
Simon Fletcher
4
Cisco quality platform with dependable results.
Questions & Answers
What is the Cisco ISR4331-AX/K9?
The Cisco ISR4331-AX/K9 is a high-performance integrated services router bundle that delivers enterprise-grade performance, application experience (APPX) and advanced security licensing in a compact form factor.
What software and licenses come with the ISR4331-AX/K9 bundle?
The bundle includes Cisco IOS XE Software with an App Experience (APPX) license for application optimization and a Security (SEC) license for advanced threat protection and VPN services.
What throughput and performance can I expect from this router?
The ISR4331-AX/K9 supports up to 100 Mbps of concurrent firewall throughput and up to 300 Mbps of aggregate performance for routing, security and application services.
How many network interfaces does the ISR4331-AX/K9 offer?
It features three integrated Gigabit Ethernet ports plus two network interface module slots that can accommodate additional Gigabit Ethernet, SFP or other Cisco interface modules.