ISR4221/K9
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Explore the
4000 Series ISR models
The 4000 Series offers solutions for highly secure SD-WAN connectivity, application experience, unified communications, network automation, virtualization, and branch and direct Internet access security–all in one platform.
ISR 4221 | GE/SFP integrated WAN ports 1.2-Gbps performance 75-Mbps encrypted throughput Full IOS XE SD-WAN support Cyberthreat protection through Trustworthy Systems framework |
ISR 4321 | GE/SFP integrated WAN ports 2-Gbps+ performance 100-Mbps encrypted throughput Full IOS XE SD-WAN support Cyberthreat protection through Trustworthy Systems framework |
ISR 4331 | GE/SFP integrated WAN ports 2-Gbps+ performance 500-Mbps encrypted throughput Full IOS XE SD-WAN support Cyberthreat protection through Trustworthy Systems framework |
ISR 4351 | PoE GE/SFP, GE/SFP integrated WAN ports 2-Gbps+ performance 500-Mbps encrypted throughput Full IOS XE SD-WAN support Cyberthreat protection through Trustworthy Systems framework |
ISR 4431 | PoE GE/SFP, GE/SFP integrated WAN ports 4-Gbps + performance 900-Mbps encrypted throughput Cyberthreat protection through Trustworthy Systems framework |
ISR 4451 | PoE GE/SFP, GE/SFP integrated WAN ports 4-Gbps+ performance 1.6-Gbps encrypted throughput Cyberthreat protection through Trustworthy Systems framework |
Feature highlights
Virtualization ready
Host virtualized network functions and applications at any time and in any place. Flexible deployment options mean freedom of choice.
Network automation
Configure and monitor your network and enforce business policies through Cisco DNA Center and Cisco SD-WAN. Simplify network management and turn hours of work into seconds.
Network services
Get key integrated network services.
Branch threat defense
Protect your branch site across the LAN and WAN and in the cloud with security integrated into the router. You no longer need a separate security appliance.
New enterprise branch networking architectures
Understanding the market requirements, fundamental changes, and the need to adapt: presented by Enterprise Strategy Group.
ISR4221/K9 Overview
Cisco 4221 Integrated Services router is design to deliver advanced services to the small enterprise branch environment. It delivers 35Mbps thoughtput by default. With pay-as-you-grow performance, you can increase forwarding capacity to 75Mbps by buying licenses.
shows the Quick Specs
Product Code | Cisco ISR4221/K9 |
Aggregate Throughput | 35 Mbps to 75 Mbps |
Total onboard WAN or LAN 10/100/1000 ports | 2 |
RJ-45-based ports | 2 |
SFP-based ports | 1 |
NIM (Network Interface Modules) slots | 2 |
Onboard ISC slot | No |
Default memory double-data-rate 3 (DDR3) error-correction-code (ECC) DRAM (Combined control/services/data planes) | 4 GB |
Flash Memory | 8 GB |
Power-supply options | External AC only |
Rack height | 1 RU |
Dimensions (H x W x D) | 1.72 x 12.7 x 10 in (43.7 x 322.6 x 254 mm) |
Weight with AC PS (no modules) | 7.1 lb (3.22 kg) |
shows some recommended modules and cards
Items | Models | Description |
Console and Auxillary Cables | CAB-CONSOLE-RJ45 | Cisco CAB-CONSOLE-RJ45 Console Cable 6ft with RJ45 and DB9F |
Network Interface Modules | NIM-1MFT-T1/E1 | Cisco Fourth-Generation Multiflex Trunk Voice and WAN network interface module |
NIM-ES2-4 | Cisco 4000 Series Integrated Services Router 4-Port Gigabit Ethernet Switch Module layer 2 | |
NIM-ES2-8 | Cisco 4000 Series Integrated Services Router 8-Port Gigabit Ethernet Switch Module NIM | |
SFPs for On-Board GE Ports | GLC-LH-SMD | Cisco GLC-LH-SMD 1000BASE-LX/LH SFP transceiver module, MMF/SMF, 1310nm, DOM |
GLC-ZX-SMD | Cisco GLC-ZX-SMD 1000BASE-ZX SFP transceiver module, SMF, 1550nm, DOM | |
GLC-SX-MMD | Cisco GLC-SX-MMD 1000BASE-SX SFP transceiver module, MMF, 850nm, DOM |
shows the comparison
Technical Specifications | ISR4461/K9 | ISR4451-X/K9 | ISR4431/K9 | ISR4351/K9 | ISR4331/K9 | ISR4321/K9 | ISR4221/K9 |
Aggregate Throughput | 1.5Gbps | 1 Gbps to 2 Gbps | 500 Mbps to 1 Gbps | 200 Mbps to 400 Mbps | 100 Mbps to 300 Mbps | 50 Mbps to 100 Mbps | 35 Mbps to 75 Mbps |
Total onboard WAN or LAN 10/100/1000 ports | 4 | 4 | 4 | 3 | 3 | 2 | 2 |
RJ-45-based ports | 4 | 4 | 4 | 3 | 2 | 2 | 2 |
SFP-based ports | 4 | 4 | 4 | 3 | 2 | 1 | 1 |
Enhanced service-module slots | 3 | 2 | 0 | 2 | 1 | 0 | 0 |
Doublewide service-module slots | 2 | 1 (assumes no singlewide SM-X modules installed) | 0 | 1 (assumes no singlewide SM-X modules installed) | 0 | 0 | 0 |
NIM slots | 3 | 3 | 3 | 3 | 2 | 2 | 2 |
OIR (all I/O modules) | Yes | Yes | Yes | Yes | Yes | Yes | No |
Onboard ISC slot | 1 | 1 | 1 | 1 | 1 | 1 | No |
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