Cisco C3900-SPE250 K9 Integrated Services Router

Cisco C3900-SPE250 K9 Router – High-Performance ISR Module for Enterprise Branch Networks

The Cisco C3900-SPE250 K9 Router is a powerful integrated services router (ISR) designed to deliver advanced networking capabilities for mid-size and large enterprise branch deployments. Part of the Cisco 3900 Series, this router supports high throughput, secure WAN connectivity, and services such as VPN, firewall, Unified Communications, and application optimization — all from a single, modular platform.

Equipped with the SPE250 Service Performance Engine, the Cisco C3900-SPE250 K9 Router provides enhanced processing power and scalability, making it an ideal choice for high-demand network environments that require reliability, speed, and intelligent traffic management.

Key Features of Cisco C3900-SPE250 K9 Router

• Model: Cisco C3900-SPE250/K9

• Performance Engine: Service Performance Engine 250 (SPE250)

• CPU: Multi-core processor for enhanced performance

• Memory: Up to 2GB DRAM

• Storage: Optional internal HDD/SSD support

• Slots: Modular design with multiple EHWIC, SM, and ISM slots

• Integrated Services: Voice, Video, Security, WAN Optimization

• Power Supply: Dual power supply support for redundancy

• Cisco IOS: Enterprise-class IOS with advanced feature sets

• Management: CLI, SNMP, Cisco Prime, Cisco DNA Center

Modular Architecture with Scalability in Mind

The Cisco C3900-SPE250 K9 Router is designed with modularity and future scalability at its core. It offers a range of expansion slots for:

• EHWIC (Enhanced High-Speed WAN Interface Cards)

• Service Modules (SMs)

• Internal Services Modules (ISMs)

• Compact Flash and USB for storage expansion

This allows businesses to customize their router with the exact services they need — whether that’s integrated voice, security, or high-speed WAN interfaces — and scale over time without changing the core device.

Enhanced Performance with SPE250 Module

At the heart of the Cisco C3900-SPE250 K9 Router is the SPE250 Service Performance Engine, a high-performance processing module that boosts routing throughput, improves multitasking, and handles advanced services like:

• Deep packet inspection

• Real-time application optimization

• High-performance IPsec VPN tunnels

• Dynamic Multipoint VPN (DMVPN)

• Cisco Performance Routing (PfR)

This ensures that even under heavy workloads, the router performs reliably and efficiently.

Security, Voice, and Collaboration Integration

The Cisco C3900-SPE250 K9 Router supports integrated security features such as:

• Cisco IOS Firewall

• Intrusion Prevention System (IPS)

• Content Filtering

• IPsec VPN and SSL VPN

Additionally, the router is fully compatible with Cisco Unified Communications solutions, enabling voice gateway services, call processing survivability, and support for SIP and H.323 protocols. This makes it a smart choice for businesses implementing VoIP or hybrid collaboration platforms.

Benefits of Using CiscoC3900-SPE250 K9 Router

✔️ All-in-one solution for routing, voice, video, and security
✔️ Modular design for future-proof expansion
✔️ Redundant power supply support for uptime assurance
✔️ Ideal for branch environments with heavy traffic demands
✔️ Cisco reliability and enterprise support
✔️ Energy-efficient design for lower operating costs

Whether you are looking to consolidate services, upgrade WAN performance, or introduce centralized control over your branch infrastructure, the CiscoC3900-SPE250 K9 Router is engineered to handle it all with ease.

Use Cases for Cisco C3900-SPE250 K9 Router

This router is perfect for:

• Enterprise branch offices

• Healthcare and financial networks

• Government agencies needing secure WAN

• Retail chains with centralized IT

• Voice and data integration platforms

• Cloud-connected SD-WAN infrastructure

It provides consistent performance whether used as a WAN aggregation router, a secure VPN gateway, or a collaboration edge device.

Conclusion

The Cisco C3900-SPE250 K9 Router is a feature-rich, future-ready ISR that brings power, security, and flexibility to your network infrastructure. With its modular design and high-performance SPE250 module, it’s the perfect solution for organizations looking to consolidate multiple network functions into one powerful device.

Whether you are building a modern branch architecture or optimizing existing infrastructure, the CiscoC3900-SPE250 K9 Router delivers on performance, reliability, and total cost of ownership.

For more details, you can find the datasheet on our website at the following link: