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Excellent UC, security, and application performance combined in one platform.
ISR4351-AXV/K9
Cisco ISR 4351 AXV Bundle.PVDM4-64 w/APP.SEC.UC lic.CUBE-25
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ISR4351-AXV/K9
- Description:
- Cisco ISR 4351 AXV Bundle.PVDM4-64 w/APP.SEC.UC lic.CUBE-25
- Rating:
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- Brand:
- Cisco
- GTIN:
- 147663704798
- Condition:
- Warranty:
- 3
- List Price:
$22,948.00
- Price:
$12,076.0047.4% off
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1
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ISR4351-AXV/K9 Overview
Overview of ISR4351-AXV/K9
ISR4351-AXV/K9 is a high-performance modular enterprise router engineered with a flexible architecture that supports integrated services such as voice, video, and WAN optimization. It offers versatile power options including redundant AC power supply configurations, multiple WAN interfaces that allow dual-WAN connectivity, and ample LAN interfaces for reliable branch connectivity. Designed for demanding network environments, it integrates advanced VPN features and robust security built right into its firmware, ensuring secured remote access and data protection.
This router is tailored for enterprises requiring high throughput and dependable performance in a compact, rack-mount form factor. Its modular capabilities enable the addition of service modules and expansion cards for customization, while built-in firewall and IPSec/SSL VPN support provide enhanced data security. With comprehensive routing protocols and high availability support, ISR4351-AXV/K9 meets critical business use cases, including secure branch connectivity, integrated voice communications, and high-demand WAN applications.
ISR4351-AXV/K9 price is $12,076.00, a 47.4% saving from the Cisco list price of $22,948.00. ISR4351-AXV/K9 is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for ISR4351-AXV/K9 for additional pricing. Browse the full Router Isr 4000 series or explore all Cisco products.
ISR4351-AXV/K9 Specifications
- Product Type
- Enterprise Router
- VPN Support
- IPSec / SSL VPN / GRE / DMVPN / FlexVPN / N/A
- Power Source
- AC Power Supply / Redundant
- Routing Protocols
- OSPF / BGP / EIGRP / MPLS / IS-IS / RIP / Static Routing / N/A
- Broadband
- N/A
- Architecture
- Modular
- WAN Configuration
- Dual WAN
- WAN Ports
- 2 WAN
- LAN Ports
- 4 LAN Ports
- Ethernet Technology
- 10/100/1000
- Wi-Fi Standard
- N/A
- Connectivity Type
- Wired
- Network Protocols
- IPv4, IPv6
- Remote Management
- SSH, Telnet, SNMP
- Compliance Standards
- FCC, CE
- Wireless Support
- No
- Speed/Capacity
- Gigabit
- Firewall Features
- Yes
- Features
- VPN, Voice, Video, IPv6 Compatible, Firewall, MPLS, Syslog
- Use Case
- Enterprise
- Management
- Managed
- Form Factor
- Rack-mount
- Integrated Services
- Voice, Video, WAN Optimization
- High Availability Support
- Supported
- Safety
- N/A
- EMC
- N/A
- Telecom
- N/A
- Throughput Capacity
- 0.15 Gbps
- QoS Features
- Supported
- Built-in Security Features
- Firewall, Intrusion Prevention, Malware Protection
- Expansion Slots
- EHWIC
- Modular Slots Available
- 1 Slot
- Stacking Capability
- No
- 5G Support
- No
- Memory
- 1 GB
- Flash Memory
- 256 MB
- Interface Ports
- RJ-45, SFP
- Power
- 130W
- Device Type
- Router
- Product Name
- Cisco ISR4351-AXV/K9 Integrated Services Router
- Height
- N/A
- Width
- N/A
- Depth
- N/A
- Weight
- N/A
ISR4351-AXV/K9 Use Case
Secure Branch Office Unified Communications
In a multinational enterprise, IT deploys the ISR4351-AXV/K9-Cisco ISR 4351 AXV Bundle.PVDM4-64 w/APP.SEC.UC lic.CUBE-25 at remote branches to terminate SIP trunks, encrypt voice traffic and host local UC services. By combining PVDM4-64 DSP resources, advanced security licenses and CUBE functionality in a single platform, the solution delivers carrier-grade voice/video quality, AES-256 encryption and 50% lower hardware footprint. Benefit: Accelerated branch roll-out with enterprise-grade voice security, simplified operations and predictable OPEX.
High-Density Contact Center Voice Consolidation
A global contact center consolidates 200+ simultaneous call channels onto ISR4351-AXV/K9-Cisco ISR 4351 AXV Bundle.PVDM4-64 w/APP.SEC.UC lic.CUBE-25 to replace multiple aging gateways. The integrated PVDM4-64 DSP module and UC licensing enable high-density transcoding and feature-rich services (call recording, ACD integration) over SIP. Benefit: 40% reduction in device count, consistent QoS across geographies, full compliance with PCI-DSS and GDPR voice retention requirements.
Scalable VPN & WAN Aggregation for Distributed Retail
A national retail chain leverages the ISR4351-AXV/K9-Cisco ISR 4351 AXV Bundle.PVDM4-64 w/APP.SEC.UC lic.CUBE-25 in each store to aggregate POS, CCTV and VoIP traffic into a secure MPLS/VPN fabric. With embedded APP-SEC firewall, site-to-site IPsec and CUBE-based SIP breakout, stores achieve sub-20 ms latency and end-to-end encryption for transaction data and voice. Benefit: Centralized policy enforcement, 99.99% uptime, and a 30% decrease in per-store network TCO.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
 ISR4351-AXV/K9 |  ISR4461-SEC/K9 |  C1-CISCO4221/K9 |  ISR4451-X-AXV/K9 |  ISR4331-AX/K9 | |
|---|---|---|---|---|---|
| 5G Support | No | No | No | No | No |
| Architecture | Modular | Modular | Fixed | Modular | Fixed / Modular |
| Broadband | N/A | N/A | N/A | N/A | N/A |
| Built-in Security Features | Firewall, Intrusion Prevention, Malware Protection | Firewall, Intrusion Prevention, Malware Protection | Firewall / Intrusion Prevention / Malware Protection | Firewall / Intrusion Prevention / Malware Protection | Firewall / Intrusion Prevention / Malware Protection |
| Compliance Standards | FCC, CE | FCC, CE, UL, RoHS | FCC, CE, UL | FCC / CE / UL | FCC / CE / UL |
| Connectivity Type | Wired | Wired | Wired | Wired | Wired |
| Depth | N/A | N/A | 10.1 inches | N/A | N/A |
| Device Type | Router | Router | Router | Router | Router |
| EMC | N/A | N/A | FCC, CE | FCC C63.10 | FCC / CE |
| Ethernet Technology | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 |
| Expansion Slots | EHWIC | EHWIC | EHWIC | EHWIC / NIM | EHWIC / NIM |
| Features | VPN, Voice, Video, IPv6 Compatible, Firewall, MPLS, Syslog | VPN, VoIP, IPv6 Compatible, Firewall, POE, MPLS, Syslog | VPN / VoIP / IPv6 Compatible / Firewall | VPN / VoIP / IPv6 Compatible / Firewall / MPLS | VPN / IPv6 Compatible / Firewall / WAN Optimization / Voice / Video |
| Firewall Features | Yes | Yes | Yes | Yes | Yes |
| Flash Memory | 256 MB | 1 GB | 256 MB | 1 GB | 512 MB |
| Form Factor | Rack-mount | Rack-mount | Rack-mount | Rack-mount Chassis | Rack-mount |
| Height | N/A | N/A | 1.73 inches | N/A | N/A |
| High Availability Support | Supported | Supported | Supported | Supported | Supported |
| Integrated Services | Voice, Video, WAN Optimization | Voice, Video, WAN Optimization | Voice / Video | Voice / Video / WAN Optimization | Voice / Video / WAN Optimization |
| Interface Ports | RJ-45, SFP | RJ-45, SFP, Combo Ports | RJ-45 | RJ-45 / SFP | RJ-45 / SFP |
| LAN Ports | 4 LAN Ports | 4 LAN Ports | 4 LAN Ports | 4 LAN Ports | 4 LAN Ports |
| Management | Managed | Managed | Managed | Managed | Managed |
| Memory | 1 GB | 4 GB | 2 GB | 4 GB | 4 GB |
| Modular Slots Available | 1 Slot | 2 Slots | 2 Slots | 3+ Slots | 3+ Slots |
| Network Protocols | IPv4, IPv6 | TCP/IP, IPv4, IPv6, MPLS | IPv4, IPv6, MPLS | IPv4 / IPv6 | IPv4 / IPv6 |
| Power | 130W | 370 W | 80 Watt | 305 W | 65 Watts |
| Power Source | AC Power Supply / Redundant | AC Power Supply / Redundant | AC Power Supply / N/A | Redundant AC Power Supply | AC Power Supply |
| Product Name | Cisco ISR4351-AXV/K9 Integrated Services Router | Cisco ISR4461-SEC/K9 | Cisco 4221 Integrated Services Router | Cisco ISR4451-X Integrated Services Router | Cisco ISR4331-AX/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 | SSH, Telnet, SNMP | CLI, WebUI, SNMP | CLI / SNMP / NetFlow | SSH / Telnet / SNMP |
| Routing Protocols | OSPF / BGP / EIGRP / MPLS / IS-IS / RIP / Static Routing / N/A | OSPF / BGP / EIGRP / MPLS / IS-IS / RIP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / BGP / EIGRP / MPLS / RIP / Static Routing | OSPF / BGP / EIGRP / MPLS / RIP / Static Routing |
| Safety | N/A | N/A | UL, CE | RoHS | UL / IEC |
| Speed/Capacity | Gigabit | Gigabit | Gigabit | Gigabit | Gigabit |
| Stacking Capability | No | No | No | Yes | No |
| Telecom | N/A | N/A | N/A | FCC Part 15 | TIA/EIA |
| Throughput Capacity | 0.15 Gbps | 2 Gbps | 0.075 Gbps | 2 Gbps | 0.15 Gbps |
| Use Case | Enterprise | Enterprise | Enterprise | Enterprise | Enterprise / Branch |
| VPN Support | IPSec / SSL VPN / GRE / DMVPN / FlexVPN / N/A | IPSec / SSL VPN / GRE / DMVPN / FlexVPN | IPSec / 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 | 2 WAN | 2 WAN | 2 WAN |
| Weight | N/A | N/A | 15.7 lbs | N/A | N/A |
| Wi-Fi Standard | N/A | N/A | N/A | N/A | N/A |
| Width | N/A | N/A | 17.3 inches | N/A | N/A |
| Wireless Support | No | No | No | No | No |
Reviews & Ratings
S
Stephen Carter
4
AXV bundle delivered reliable voice and WAN services.
M
Michael Thornton
5
Strong throughput with UC enabled. No downtime experienced.
D
Daniel Foster
5
Cisco ISR performed consistently in a busy branch environment.
R
Robert Kingsley
5
Ideal for enterprises needing voice, security, and applications together.
Questions & Answers
What is the Cisco ISR 4351 AXV Bundle (ISR4351-AXV/K9)?
The Cisco ISR 4351 AXV Bundle is an integrated services router with a PVDM4-64 DSP module, APP.SEC.UC license, and CUBE-25 session border controller to deliver networking, security, and unified communications in a single platform.
What are the key features of the Cisco ISR 4351 AXV Bundle?
Key features include 2.5 Gbps throughput, 64-channel voice DSP (PVDM4-64), advanced security and unified communications (APP.SEC.UC license), plus 25 session SIP trunking with CUBE-25.
How many voice channels does the PVDM4-64 module support?
The PVDM4-64 DSP module supports up to 64 VoIP channels simultaneously for high-density voice and conferencing applications.
What does the APP.SEC.UC license include?
The APP.SEC.UC license bundles Cisco ISR application hosting, advanced security features, and integrated unified communications for voice and video services.
What functionality does the CUBE-25 license provide?
The CUBE-25 license enables Cisco Unified Border Element for up to 25 concurrent SIP trunks, offering secure session management between service providers and enterprise networks.
What routing performance can I expect from the Cisco ISR 4351 AXV?
You can achieve up to 2.5 Gbps of aggregate throughput and support thousands of concurrent sessions, optimized by Cisco’s Quantum Flow Processor.
Which interface options and expansion slots are available?
The ISR 4351 AXV features three integrated Gigabit Ethernet ports, two NIM slots, two SM slots, and one service module slot for flexible connectivity.
How does integrated security protect my network?
Integrated security includes stateful firewall, intrusion prevention, URL filtering, and VPN services to safeguard branch and campus environments.
How does unified communications benefit collaboration?
Built-in UC features deliver high-quality voice, video, voicemail, and conferencing to improve productivity and reduce operational complexity.
What are common deployment use cases for this bundle?
Ideal for enterprise branch offices, retail locations, and small data centers requiring secure WAN connectivity, voice services, and application hosting.
How is licensing structured for the ISR 4351 AXV Bundle?
Licensing is perpetual, encompassing the PVDM4-64 voice DSP, APP.SEC.UC feature package, and CUBE-25 session border controller in one SKU.
What are the deployment prerequisites?
You need Cisco IOS XE 16.9 or later, appropriate rack space (1RU), redundant power options, and an approved network design for optimal performance.
How can I monitor and manage the ISR 4351 AXV?
You can use Cisco DNA Center, Cisco Prime Infrastructure, or standard CLI/SNMP tools for real-time monitoring, configuration, and software updates.
What are the environmental and form-factor specifications?
The router is 1RU, supports 0°C to 40°C operating temperature, 5%–90% non-condensing humidity, and complies with NEBS and CE safety standards.
How does deploying the Cisco ISR 4351 AXV improve ROI?
By consolidating routing, security, and UC services into one platform, the bundle reduces hardware costs, simplifies management, and accelerates time to market.
What support and warranty options are available?
Cisco offers a 1-year limited hardware warranty, and optional Smart Net Total Care for 24/7 TAC support, software updates, and hardware replacement.