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Product Overview The Cisco ISR4321-VSEC/K9 is a fully integrated voice and security services router from the Cisco ISR 4000 Series, designed for small enterprise branches. This model includes both the Unified Communications (UC/Voice) and Security (SEC) licenses, offering full support for VoIP, CME, SRST, IPsec VPN, Zone-Based Firewall, and application visibility. With a compact form factor and modular expandability, it provides an all-in-one solution for secure, voice-enabled SD-WAN deployments, with throughput scalable from 50 Mbps to 100 Mbps.
Unified Communications license supports VoIP, SRST, CME, and TDM gateways
Security license enables IPsec VPN, zone-based firewall, and AVC
Compact 1RU design with modular WAN/voice interface slots
Performance-on-Demand license scales throughput to match branch growth
SD-WAN ready with support for cloud on-ramp, segmentation, and intelligent routing
Supports QoS, call survivability, and application visibility
Ideal for secure voice-centric branch deployments
Similar Models Comparison
Model
UC License
SEC License
Max Throughput
NIM Slots
SD-WAN
Ideal Use Case
ISR4331-VSEC/K9
Yes
Yes
300 Mbps
2
Yes
Mid-sized secure UC branches
ISR4321-VSEC/K9
Yes
Yes
100 Mbps
2
Yes
Small secure voice branches
ISR4321-V/K9
Yes
No
100 Mbps
2
Yes
Voice-only small branch
Latest ISR 4000 Series UC + Security Models
Model
Max Throughput
Voice + Security
SD-WAN
Target Deployment Size
ISR4451-VSEC/K9
2 Gbps
Yes
Yes
Large voice + secure branches
ISR4351-VSEC/K9
400 Mbps
Yes
Yes
Medium enterprise branches
ISR4331-VSEC/K9
300 Mbps
Yes
Yes
Medium-sized secure UC offices
ISR4321-VSEC/K9
100 Mbps
Yes
Yes
Small secure UC branch offices
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...
