ISR4451 X K9 1 a 2G Transmisión del sistema 4 puertos WAN y LAN 4 puertos SFP 10 núcleo de la CPU Voz de seguridad WAAS WAN inteligente

The Cisco ISR4451-X/K9 is a high-performance Integrated Services Router in the Cisco 4000 Series, designed for enterprise branch offices, WAN edge deployments, and distributed campus networks. It combines routing, security, VPN, voice, and application services into a single platform, helping businesses simplify branch infrastructure while maintaining high service availability and scalable performance.

With 1 Gbps default throughput and up to 2 Gbps system performance, the Cisco ISR4451-X/K9 is built for organizations that need reliable WAN connectivity, encrypted communication, unified communications support, and long-term service flexibility. The router features 4 onboard 10/100/1000 WAN/LAN ports, 4 SFP ports, 3 NIM slots, 2 service module slots, and 1 ISC slot, allowing enterprises to expand interfaces and services as network requirements grow.

Compared with entry-level branch routers, the ISR4451-X/K9 offers stronger throughput, modular expansion, and better support for service integration. It is a practical solution for enterprises looking to upgrade legacy branch routers, improve WAN performance, or build a more secure and scalable network edge.

The Cisco ISR4451-X/K9 delivers 1 Gbps default throughput and up to 2 Gbps performance throughput, making it suitable for branch environments running cloud applications, encrypted traffic, voice, and business-critical WAN services at the same time.

With 3 NIM slots, 2 SM slots, and 1 ISC slot, the router offers modular flexibility for interface upgrades, service integration, and future network expansion. This makes it a strong choice for growing branch deployments.

The ISR4451-X/K9 consolidates multiple network functions into one platform. It is designed for businesses that want to reduce hardware complexity while maintaining secure WAN access, VPN connectivity, and service delivery across remote offices.

The router includes 4 onboard Gigabit Ethernet WAN/LAN ports and 4 SFP ports, enabling flexible deployment across mixed copper and fiber environments.

Whether you are replacing an older ISR platform, preparing for WAN transformation, or supporting more cloud-based traffic, the Cisco ISR4451-X/K9 offers a scalable and stable foundation for long-term branch networking.

The Cisco ISR4451-X/K9 is a strong option for organizations that need more than a basic branch router. It is designed to support multiple services in one chassis, helping enterprises reduce deployment complexity while maintaining reliable performance and room for expansion.

It is especially suitable for:

• Enterprise branch office routing
• Secure WAN edge deployment
• VPN connectivity between offices
• Voice and unified communications support
• Branch network refresh projects
• Multi-service routing in distributed enterprise environments

For businesses that expect increasing traffic, more encrypted connections, and service integration across locations, the ISR4451-X/K9 provides better long-term value than lower-performance branch routers.

Both the Cisco ISR4451-X/K9 and Cisco ISR4431/K9 belong to the Cisco 4000 Series and are designed for enterprise branch networking. The main difference lies in performance headroom and scalability.

• Higher throughput for busy branch traffic
• Better support for security, VPN, and voice services running simultaneously
• More room for future expansion and application growth
• A stronger platform for medium to large branch deployments

• A lower-cost router for smaller or mid-size branch sites
• Moderate traffic handling requirements
• Standard enterprise WAN routing without higher throughput demands

In most cases, the ISR4451-X/K9 is the better choice for enterprises planning long-term network growth, cloud access expansion, and secure multi-service branch operations.

• Enterprise branch offices
• Regional offices and distributed campuses
• Secure WAN edge deployments
• VPN and encrypted inter-office connectivity
• Unified communications and voice deployments
• Managed network services projects
• Legacy branch router replacement
• Hybrid enterprise networking environments

At Lonrise Equipment, we focus on supplying enterprise networking hardware for system integrators, resellers, operators, and global IT buyers. For the Cisco ISR4451-X/K9, we can provide professional support throughout the purchasing process.

• Fast quotation response for urgent projects
• Stable supply support for enterprise networking products
• Pre-shipment product verification upon request
• International shipping coordination
• One-stop sourcing for routers, switches, optical transceivers, and firewall products
• Basic after-sales communication and order support

If your project also requires Cisco switches, SFP modules, firewall appliances, or related spare parts, we can support combined quotation and sourcing to simplify procurement.

The Cisco ISR4451-X/K9 provides 1 Gbps default throughput and can scale up to 2 Gbps system performance, depending on licensing and deployment configuration.

It includes 4 onboard 10/100/1000 Gigabit Ethernet WAN/LAN ports and 4 SFP ports, providing flexible copper and fiber connectivity for branch networks.

Yes. The ISR4451-X/K9 is specifically designed for enterprise branch offices, distributed campuses, and WAN edge environments that require routing, VPN, security, and service integration in one platform.

The router supports 3 NIM slots, 2 SM slots, and 1 ISC slot, allowing customers to expand interfaces and services based on project requirements.

The ISR4451-X/K9 generally offers higher performance and stronger scalability than the ISR4431/K9, making it more suitable for larger branch sites or networks with heavier application traffic.

Yes. The Cisco ISR4451-X platform is designed for secure enterprise routing and is commonly used for VPN, encrypted WAN access, and integrated branch services.

Availability depends on stock status. We can provide new or tested units based on actual inventory. Please contact us for current availability, condition details, and lead time.

Yes. We provide basic after-sales support, including order follow-up, pre-shipment confirmation, product verification assistance, and warranty-related communication.

Yes. If you need multiple units or a complete project quotation including routers, switches, transceivers, and firewall products, we can provide a combined quote based on your project list.

Yes. The ISR4451-X/K9 is often used to replace legacy branch routers when enterprises need higher throughput, better service integration, and more flexible interface expansion.

We understand that enterprise networking purchases require more than just product delivery. To support customers buying the Cisco ISR4451-X/K9, we provide practical pre-sales and after-sales assistance to help reduce procurement risk and improve project efficiency.

• Product model and interface confirmation before order
• Pre-shipment product photos and label verification upon request
• Packaging and international logistics coordination
• Basic warranty support and after-sales communication
• Assistance with combined procurement for related Cisco hardware
• Fast response for repeat orders and long-term sourcing cooperation

The Cisco ISR4451-X/K9 can be packed securely for international delivery. We support shipment by DHL, FedEx, UPS, TNT, or other available logistics channels depending on destination and order requirements. If your project has specific packaging, customs, or shipping timeline requirements, please contact us before ordering.

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