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Name:
ISR4331/K9
- Description:
- Cisco ISR 4331 (3GE,2NIM,1SM,4G FLASH,4G DRAM,IPB)
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- 818250039295
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3 - List Price:
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$5,223.00
- Price:
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$1,064.00
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If a hardware issue is confirmed, we’ll repair or replace the unit. Replacement parts carry either original or 3-month coverage.
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ISR4331/K9
Cisco ISR 4331 (3GE,2NIM,1SM,4G FLASH,4G DRAM,IPB)
$5,223.00
$1,064.00
15 in Global Warehouse
$1,064.00
80% off
TRUSTED, TRIED, PROVEN
ISR4331/K9 Overview
ISR4331/K9 is a modular, enterprise-class router built on a robust Cisco IOS XE architecture with integrated services that support voice, video, and WAN optimization. It offers flexible power options with support for AC and redundant configurations, dual WAN interfaces paired with modular LAN capabilities, and dedicated VPN features such as IPsec and SSL VPN to ensure secure branch connectivity.
ISR4331/K9 delivers high throughput performance with built-in redundancy for mission-critical applications and supports advanced routing protocols alongside integrated firewall and QoS features. Its design caters to enterprise and branch use cases where a compact, rack‐mount chassis with expansion slots for additional modules meets robust connectivity and security demands.
What is the price of ISR4331/K9?
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ISR4331/K9 Specifications
| Product Type | Enterprise Router |
| VPN Support | IPSec / SSL VPN / DMVPN / FlexVPN |
| Power Source | AC Power Supply / Redundant |
| Routing Protocols | OSPF / BGP / EIGRP / RIP / Static Routing |
| Broadband | N/A |
| Architecture | Modular |
| WAN Configuration | Dual WAN |
| WAN Ports | 2 WAN |
| LAN Ports | Modular LAN |
| Ethernet Technology | 10/100/1000 |
| Wi-Fi Standard | N/A |
| Connectivity Type | Wired |
| Network Protocols | IPv4, IPv6, MPLS |
| Remote Management | Telnet, SSH, SNMP, NETCONF |
| Compliance Standards | FCC, CE, RoHS |
| Wireless Support | No |
| Speed/Capacity | Gigabit |
| Firewall Features | Yes |
| Features | VPN, IPv6 Compatible, Firewall, Integrated Services |
| 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 | 100 Mbps |
| QoS Features | Supported |
| Built-in Security Features | Firewall, Intrusion Prevention, Malware Protection |
| Expansion Slots | EHWIC / NIM |
| Modular Slots Available | 2 Slots |
| Stacking Capability | No |
| 5G Support | No |
| Memory | 4 GB |
| Flash Memory | 4 GB |
| Interface Ports | RJ-45, SFP |
| Power | 150W |
| Device Type | Router |
| Product Name | Cisco ISR4331/K9 |
| Height | 1.75 inches |
| Width | 17.41 inches |
| Depth | 16.34 inches |
| Weight | 14.3 lbs |
ISR4331/K9 Use Case
Enterprise SD-WAN Edge Deployment with Cisco ISR 4331
A global retail chain deploys Cisco ISR 4331 (3GE, 2NIM, 1SM, 4G FLASH, 4G DRAM, IP Base) at 200+ stores to serve as SD-WAN edge routers. Using Cisco vManage to orchestrate dynamic path selection across broadband, MPLS, and LTE links, IT teams achieve granular application steering and zero-touch provisioning. Benefit: Cuts WAN transport costs by 40%, boosts application uptime to 99.99%, and simplifies centralized policy management for rapid branch rollout.
PCI-Compliant VPN Gateway for Financial Services
A mid-size bank leverages Cisco ISR 4331’s IPsec hardware acceleration and IP Base license to secure site-to-site tunnels between headquarters and 50 ATM / branch locations. With DMVPN and 256-bit AES encryption, sensitive transactions are protected end-to-end, meeting stringent PCI DSS and data-privacy regulations. Benefit: Delivers bank-grade encryption, reduces VPN latency by 30%, and sustains 99.95% availability for uninterrupted financial operations.
Unified Branch Networking and VoIP Continuity
A regional healthcare provider consolidates WAN, LAN, security, and voice on Cisco ISR 4331 (3GE, 2NIM, 1SM, 4G FLASH, 4G DRAM, IP Base). Integrated QoS and Survivable Remote Site Telephony (SRST) support 200 concurrent VoIP calls with prioritized traffic, while built-in firewall and WAN optimization secure and accelerate patient data flows. Benefit: Improves call quality by 50%, reduces branch hardware footprint by 30%, and ensures 24/7 clinical communications uptime.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
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|---|---|---|---|---|---|
| 5G Support | No | No | No | No | No |
| Architecture | Modular | Modular | 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, RoHS | FCC / CE / UL | FCC / CE | FCC, CE, RoHS | FCC / CE / UL |
| Connectivity Type | Wired | Ethernet | Wired | Wired / Wireless / Ethernet | Wired |
| Depth | 16.34 inches | 18 inches | 18.1 inches | N/A | N/A |
| Device Type | Router | Router | Router | Router | Router |
| EMC | N/A | N/A | N/A | N/A | N/A |
| Ethernet Technology | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 |
| Expansion Slots | EHWIC / NIM | NIM | EHWIC / NIM | EHWIC, NIM | EHWIC / NIM |
| Features | VPN, IPv6 Compatible, Firewall, Integrated Services | VPN / VoIP / IPv6 Compatible / Firewall / MPLS | VPN / IPv6 Compatible / Firewall / MPLS | VPN, Voice, Video, IPv6 Compatible, Firewall, POE, Integrated Services | VPN / Firewall / IPv6 Compatible / QoS |
| Firewall Features | Yes | Yes | Yes | Yes | Yes |
| Flash Memory | 4 GB | 2 GB | 512 MB | 1 GB | 1 GB |
| Form Factor | Rack-mount | Rack-mount | Rack-mount | Rack-mount | Rack-mount |
| Height | 1.75 inches | 1.75 inches | 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 / Security | Voice, Video, WAN Optimization | Voice / Video / WAN Optimization |
| Interface Ports | RJ-45, SFP | RJ-45 / SFP | RJ-45 / SFP | RJ-45, SFP, Combo Ports | RJ-45 / SFP / Combo Ports |
| LAN Ports | Modular LAN | Modular LAN | 4 LAN Ports | 4 LAN Ports | 4 LAN Ports |
| Management | Managed | Managed | Managed | Managed | Managed |
| Memory | 4 GB | 4 GB | 4 GB | 4 GB | 4 GB |
| Modular Slots Available | 2 Slots | 3+ Slots | 2 Slots | 2 Slots | 3+ Slots |
| Network Protocols | IPv4, IPv6, MPLS | IPv4, IPv6, MPLS | IPv4 / IPv6 | OSPF, BGP, EIGRP, RIP, Static Routing | IPv4 / IPv6 |
| Power | 150W | 370W | 350 W | 350 W | 370W |
| Power Source | AC Power Supply / Redundant | AC Power Supply / Redundant | AC Power Supply / Redundant | AC Power Supply with Redundant Option | AC Power Supply / Redundant |
| Product Name | Cisco ISR4331/K9 | Cisco ISR4451-X-V/K9 | Cisco ISR4351-VSEC/K9 | ISR4461-AX/K9 | Cisco ISR 4461 Integrated Services Router |
| Product Type | Enterprise Router | Enterprise Router | Enterprise Router | Enterprise Router | Enterprise Router |
| QoS Features | Supported | Supported | Supported | Supported | Supported |
| Remote Management | Telnet, SSH, SNMP, NETCONF | SSH / Telnet / SNMP | CLI / SNMP / NetConf | CLI, HTTP, SNMP | SSH / Telnet / SNMP |
| Routing Protocols | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / BGP / EIGRP / IS-IS / RIP / Static Routing / MPLS | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / BGP / EIGRP / IS-IS / RIP / Static Routing |
| Safety | N/A | N/A | N/A | N/A | N/A |
| Speed/Capacity | Gigabit | Gigabit | Gigabit | Gigabit | Gigabit |
| Stacking Capability | No | No | No | Yes | Yes |
| Telecom | N/A | N/A | N/A | N/A | N/A |
| Throughput Capacity | 100 Mbps | 2 Gbps | 0.15 Gbps | 1 Gbps | 1 Gbps |
| Use Case | Enterprise | Enterprise | Enterprise | Enterprise / Branch Office | Enterprise |
| VPN Support | IPSec / SSL VPN / DMVPN / FlexVPN | IPSec / SSL VPN / GRE / DMVPN / FlexVPN | IPSec / SSL VPN / DMVPN / FlexVPN | IPSec / SSL VPN / DMVPN / FlexVPN / N/A | IPSec / SSL VPN / DMVPN / FlexVPN |
| WAN Configuration | Dual WAN | Modular WAN | Dual WAN | Dual WAN | Dual WAN |
| WAN Ports | 2 WAN | Modular WAN | 2 WAN | 2 WAN | 2 WAN |
| Weight | 14.3 lbs | 30 lbs | 16.5 lbs | N/A | N/A |
| Wi-Fi Standard | N/A | N/A | N/A | WiFi 6 (802.11ax) | N/A |
| Width | 17.41 inches | 17.5 inches | 17.2 inches | N/A | N/A |
| Wireless Support | No | No | No | Yes | No |
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Questions & Answers
Q
What are the key features of the Cisco ISR 4331 (SKU ISR4331/K9)?
A
The Cisco ISR 4331 delivers scalable WAN and LAN connectivity with up to 100 Mbps throughput; it includes 3 Gigabit Ethernet ports, 2 NIM slots, 1 SM slot, 4 GB flash, 4 GB DRAM, and an IP Base software license.
Q
Which performance level does the Cisco ISR 4331 support?
A
The Cisco ISR 4331 supports up to 100 Mbps aggregate throughput in default configuration, expandable to 300 Mbps with Performance-on-Demand licenses.
Q
What modular expansion options are available on the ISR 4331?
A
The ISR 4331 provides 2 Network Interface Module (NIM) slots and 1 Service Module (SM) slot for flexible WAN, LAN, security, and voice expansion.
Q
How much memory and storage are included in the ISR 4331/K9?
A
The router ships with 4 GB DRAM and 4 GB onboard flash memory, supporting additional DRAM and flash upgrades for increased application performance and logging.
Q
Which software license is pre-installed on the Cisco ISR 4331?
A
The Cisco ISR 4331/K9 includes the IP Base software license, offering advanced routing, WAN optimization, and security features right out of the box.
Q
What WAN connectivity options does the ISR 4331 support?
A
The ISR 4331 supports Ethernet, T1/E1, xDSL, 4G LTE, and Metro Ethernet via NIM modules, enabling diverse WAN failover and multi-link load balancing.
Q
Is the Cisco ISR 4331 suitable for medium branch office deployments?
A
Yes, the ISR 4331 is optimized for medium branch offices, providing enterprise-class routing, security, and application services in a compact 1RU form factor.
Q
What built-in security features does the ISR 4331 offer?
A
The router integrates Cisco IOS firewall, intrusion prevention (IPS), VPN (IPsec and SSL), and content filtering to protect branch offices from emerging threats.
Q
How can I manage and monitor the Cisco ISR 4331?
A
Management options include Cisco DNA Center, Cisco Prime, CLI, and SNMP; you can also leverage embedded Cisco IOS Software automation for policy-based provisioning.
Q
Does the ISR 4331 support unified communications and VoIP?
A
Yes, the ISR 4331 supports Cisco Unified Communications features via Service Modules, providing integrated voice, video, and collaboration services.
Q
What power supply options and redundancy features are available?
A
The ISR 4331 comes with an internal AC power supply and supports optional DC and redundant power modules to ensure high availability.
Q
How do I upgrade memory and storage on the ISR 4331?
A
You can expand DRAM up to 16 GB using SODIMM modules and increase flash storage up to 32 GB by swapping the onboard flash card, all without disrupting network services.
Q
What are the physical dimensions and power consumption of the ISR 4331?
A
The ISR 4331 measures 1.72 x 17.5 x 14.1 inches (1RU) and consumes up to 60 W under full load, enabling efficient rack integration and power budgeting.
Q
What warranty and support options are available for SKU ISR4331/K9?
A
Cisco offers a 1-year limited hardware warranty with 90-day software updates; optional Cisco SMARTnet provides 24/7 support, advanced hardware replacement, and OS upgrades.
Q
How does the ISR 4331 handle QoS and traffic prioritization?
A
The ISR 4331 includes advanced QoS features such as traffic classification, policing, shaping, and low-latency queuing to ensure performance for critical applications.
Q
Can the Cisco ISR 4331 be centrally automated and orchestrated?
A
Yes, it integrates with Cisco DNA Center and Cisco SD-WAN for policy-based automation, zero-touch provisioning, and end-to-end network visibility.
Q
What scalability options are available for future growth?
A
The ISR 4331’s modular architecture allows incremental upgrades in performance, security, and connectivity by adding NIM/SM modules, DRAM, flash, and software licenses.
