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ISR4351 K9 High-Performance Integrated Services Router for Mid-Size Offices
Product Overview The Cisco ISR4351/K9 is a modular integrated services router from the Cisco ISR 4000 Series, engineered for medium to large branch offices. It delivers scalable performance from 200 Mbps to 400 Mbps (via performance-on-demand licenses), with built-in support for routing, voice, security, SD-WAN, and virtualized services. With advanced modularity, it supports multiple NIM and SM slots, making it ideal for converged data, voice, and WAN connectivity.
Modular platform with two NIM slots and one SM-X slot for WAN, voice, or LTE modules
Optional voice DSPs and Unified Communications capabilities (CME, SRST)
Full SD-WAN ready with support for segmentation, cloud on-ramp, and app-based routing
Built-in security features: ZBFW, IPsec VPN, AVC, Control Plane Protection
High resiliency with redundant power supply support
Ideal for multi-service branch deployments requiring routing, security, and UC in one box
Similar Models Comparison
Model
Default Throughput
Max Throughput
NIM Slots
Voice Capable
SD-WAN
Ideal For
ISR4451/K9
1 Gbps
2 Gbps
3
Optional
Yes
Large branches
ISR4351/K9
200 Mbps
400 Mbps
2
Optional
Yes
Medium branches
ISR4331/K9
100 Mbps
300 Mbps
2
Optional
Yes
Small to medium offices
Latest ISR 4000 Series Models Overview
Model
Form Factor
Default/Max Throughput
Voice Support
SD-WAN Ready
Target Use Case
ISR4451/K9
2RU
1G / 2G
Yes (optional)
Yes
Enterprise-class branch
ISR4351/K9
1RU
200M / 400M
Yes (optional)
Yes
Medium multiservice branch
ISR4331/K9
1RU
100M / 300M
Yes (optional)
Yes
Small-to-mid branch office
Sinanova specializes in supplying ICT networking equipment from leading brands such as Cisco, Huawei, and Juniper. Our product range includes switches, routers, firewalls, wireless access points and controllers, IP phones, video conferencing solutions, and more. We are committed to delivering original and reliable hardware along with professional ICT solutions—all at competitive prices. Our high-quality service ensures a smooth and hassle-free purchasing experience for our clients.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Distributor/Wholesaler,Exporter,Seller
Year Established:
2025
Total Annual:
50000-3000000
Employee Number:
50~100
Ecer Certification：
Verified Supplier
Sinanova began as a domestic distributor of Cisco products and an ICT integrator. Over time, the company expanded its portfolio to include Huawei data communication equipment as well as networking solutions from Juniper and Fortinet.
Today, Sinanova specializes in providing a wide range of networ... Sinanova began as a domestic distributor of Cisco products and an ICT integrator. Over time, the company expanded its portfolio to include Huawei data communication equipment as well as networking solutions from Juniper and Fortinet.
Today, Sinanova specializes in providing a wide range of networ...
