ISR4321-AX/K9
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ISR4321-AX/K9 Routers Overview
The ISR4321-AX/K9 Intelligent WAN Bundle combines security features, application experience, and Wide Area Application Services (WAAS) into one unified platform. This bundle optimizes network traffic across the "best" link based on applications, monitoring network conditions to deliver the best possible performance. With the ISR4321-AX/K9, you gain full control over application performance, bandwidth usage, data privacy, and the availability of your WAN links—essential for branches managing larger volumes of mission-critical business. The router comes with an IP Base image, Security, and AppX licensing for 200 TCP connection resources for ISR WAAS optimization. It includes 4 GB of DRAM and 4 GB flash memory, with 50 Mbps WAN bandwidth by default. To enable the ISR WAAS service, additional memory, flash, and hard drive updates are required. Note that the vWAAS service is not available on this platform. The ISR4321-AX/K9 features 2 onboard WAN or LAN 10/100/1000 ports, 2 RJ-45-based ports, and 1 SFP-based port, with 2 NIM (Network Interface Modules) slots and 1 onboard ISC slot for further expansion. It also supports external AC and PoE power supply options and is rack-mountable with a 1RU form factor. Shop Cisco Routers like the ISR4321-AX/K9 for Cisco Enterprise Branch Routers, featuring service module support, network interface module support, ISC slots, and SFP-based connectivity in a rack-mountable design.
Recommended modules and accessories
Items |
Models |
Description |
License |
L-SL-4320-APP-K9 |
Cisco AppX license L-SL-4320-APP-K9= with 200 conns/ISRWAAS or 750 conns/vWAAS |
Console and Auxillary Cables |
CAB-CONSOLE-RJ45 |
Cisco CAB-CONSOLE-RJ45 Console Cable 6ft with RJ45 and DB9F |
| CAB-CONSOLE-USB |
Cisco CAB-CONSOLE-USB Console Cable 6 ft with USB Type A and mini-B |
|
Network Interface Modules |
NIM-2CE1T1-PRI | Cisco Multiflex Trunk Voice and WAN network interface module |
| NIM-1MFT-T1/E1 |
Cisco Fourth-Generation Multiflex Trunk Voice and WAN network interface module |
|
| NIM-4E/M | Analog voice network interface card (ear and mouth) | |
| NIM-2FXS | Cisco Analog voice network interface card NIM-2FXS | |
| NIM-2FXS/4FXO | Cisco Analog voice network interface card NIM-2FXS/4FXO | |
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 |
Compare to Similar Items
Models |
ISR4321-AX/K9 |
ISR4321/K9 |
| Description |
Cisco ISR4321-AX/K9 (2GE,2NIM,4G FLASH,4G DRAM, IP Base, Security, AppX) |
Cisco ISR 4321 (2GE,2NIM,4G FLASH,4G DRAM, IP Base) |
| Aggregate Throughput | 50 Mbps to 100 Mbps | 50 Mbps to 100 Mbps |
|
Total onboard WAN or LAN 10/100/1000 ports |
2 | 2 |
| RJ-45-based ports | 2 | 2 |
| SFP-based ports | 1 | 1 |
|
Enhanced service-module slots |
0 | 0 |
| NIM slots | 2 | 2 |
| Onboard ISC slot | 1 | 1 |
| Rack height | 1 | 1 |
Specifications
ISR4321-AX/K9 Specification |
|
| Description |
50Mbps-100Mbps system throughtput, 2 WAN/LAN ports, 1 SFP port, multi-Core CPU, 2 NIM, Security, Voice, WAAS, Intelligent WAN, OnePK, AVC |
| Aggregate Throughput | 50 Mbps to 100 Mbps |
|
Total onboard WAN or LAN 10/100/1000 ports |
2 |
| RJ-45-based ports | 2 |
| SFP-based ports | 1 |
| Enhanced service-module slots | 0 |
| Doublewide service-module slots | 0 |
| NIM slots | 2 |
| OIR (all I/O modules) | Yes |
| Onboard ISC slot | 1 |
|
Default memory double-data-rate 3 (DDR3) error-correction-code (ECC) DRAM (Combined control/services/data planes) |
4 GB |
|
Maximum memory DDR3 ECC DRAM (Combined control/services/data planes) |
8 GB |
|
Default memory DDR3 ECC DRAM (data plane) |
NA |
|
Maximum memory DDR3 ECC DRAM (data plane) |
NA |
|
Default memory DDR3 ECC DRAM (control/services plane) |
NA |
|
Maximum memory DDR3 ECC DRAM (control/services plane) |
NA |
| Default flash memory | 4 GB |
| Maximum flash memory | 8 GB |
| External USB 2.0 slots (type A) | 1 |
|
USB console port -type B mini (up to 115.2 kbps) |
1 |
|
Serial console port - RJ45 (up to 115.2 kbps) |
1 |
|
Serial auxiliary port - RJ45 (up to 115.2 kbps) |
1 |
| Power-supply options | External: AC and PoE |
| Redundant power supply | N/A |
| AC input voltage | - |
| AC input voltage | 100 to 240 VAC Autoranging |
| AC input frequency | 47 to 63 Hz |
|
AC input current range, AC power supply (maximum) |
1.5 to 0.6A |
| AC input surge current | 90 A peak and less than 3 Arms per half cycle |
| Typical power (no modules) (watts) | 36 |
|
Maximum power with AC power supply (watts) |
125 |
|
Maximum power with PoE power supply (platform only) (watts) |
260 |
|
Maximum endpoint PoE power available from PoE power supply (watts) |
120 |
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