ISR4321/K9
Safe, Fast, 100% Genuine. Your Reliable IT Partner.
Best Price Assurance, Bulk Savings, Trusted Worldwide.
Proven Expertise, Trusted Solutions
- 8 Years, 100+ Countries
- 10000+ Customers/Projects
- CCIE, HCIE, H3CIE, RCNP, CISSP, JNCIE, NSE 7 AWS, Google Cloud Experts
Join Partner Network
- Exclusive Discounts/Service
- Credit Terms/Priority Supply In Hongkong
ISR4321/K9 Routers Overview
The Cisco ISR4321/K9 Integrated Services Router is designed to deliver advanced services for small enterprise branch environments. It offers 50 Mbps throughput by default, with the flexibility to scale up to 100 Mbps using the pay-as-you-grow model and purchasing the FL-4320-PERF-K9 licenses. This router includes 2 onboard WAN or LAN 10/100/1000 ports, with 2 RJ-45-based ports and 1 SFP-based port, providing versatile connectivity options. The ISR4321-K9 also features 2 NIM (Network Interface Modules) slots and 1 onboard ISC slot for expansion. With 4 GB of RAM (expandable to 8 GB) and 4 GB flash memory (expandable to 8 GB), this router offers ample memory for handling demanding applications. Additionally, the router supports external AC and PoE power supply options and is rack-mountable with a 1RU form factor. Shop Cisco Routers like the ISR4321-K9 for a reliable solution in 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
Technical Specifications |
ISR4461/K9 | ISR4451-X/K9 | ISR4431/K9 | ISR4351/K9 | ISR4331/K9 | ISR4321/K9 | ISR4221/K9 |
| Aggregate Throughput | 1.5Gbps | 1 Gbps to2 Gbps | 500 Mbps to1 Gbps | 200 Mbps to400 Mbps | 100 Mbps to300 Mbps | 50 Mbps to100 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 |
Specifications
ISR4321/K9 Specifications |
|
| Aggregate Throughput (Default) | 50 Mbps |
|
Aggregate Throughput (Performance License) |
100 Mbps |
|
Aggregate CEF Only Throughput (Boost License) |
1.5Gbps |
|
Total onboard WAN or LAN 10/100/1000 ports |
2 |
|
Total onboard WAN or LAN 10Gbps ports |
- |
| 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 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 |
|
Dimensions (H x W x D) |
1.75 x 14.55 x 11.60 in (44.55 x 369.57 x 294.64 mm) |
|
External Power Supply Dimensions (H x W x D) |
2.95 x 1.18 x 6.10 in (75 x 30 x 155 mm) |
|
Shipping Box Dimensions (H x W x D) |
7.0 x 21.5 x 16.125 in (177.8 x 546.1 x 409.6 mm) |
| Rack height | 1 Rack Unit (1RU) |
| Wall-mount | Mounting holes under chassis |
| Packaging Weight | 2.2 lb (1 kg) |
| Airflow | Right I/O side to Left I/O side |
| MTBF (Hours) | 593270 |
| Temperature | 32 to 104°F(0 to 40°C) |
| Altitude(China) | 0 – 6,560 ft.(0 – 2,000 m) |
| Altitude(Rest of the world) | 0 – 10,000 ft.(0 – 3,050 m) |
| Relative humidity | 5% to 85% |
| Short-term humidity | 5% to 90%, not to exceed 0.024 kg water/kg of dry air |
|
Acoustics:Sound pressure (Typical/maximum) |
24.2/51.9 dBA |
|
Acoustics: Sound power (Typical/maximum) |
31.9/59.9 dBA |
Quality Certifications
Get More Information
Warranty
100% Low Price Guarantee
Network-switch.com provides high-quality products at low wholesale prices
100% Quality Assurance
All items are ORIGINAL and GENUINE only.
Item conditions are "New Sealed". They are fully tested by Cisco-certified Engineers.
Free CCIE Technical Support
Our FREE Cisco CCIE Expert Consultancy Support is over the phone, by chat, by email or by login remotely.
100% Money Back Guarantee
You can contact our customer service team to exchange or return any product that you bought from us.
Flexible Secure Payment & Shipment
Verified authorization: Mcafee Secure, VeriSign Secured
Return Material Authorization (RMA) Process
Standard Warranty Policy
Original New Sealed Enterprise Hardware: 3 Years
Original New Sealed Consumer Devices: 1 Year
The Support Contacts
If your Cisco products failed, you must contact your sales representative to verify product failure. If the problem still can't correct by remote support methods i.e. email or phone support, the RMA procedure will issue.
Frequently Questions and Answers
Refund Policy
At Network-switch.com, we aim to provide the best customer experience and ensure that your purchases meet your expectations. If for any reason you are not satisfied with your purchase, please read our return and refund policy below to understand your options.
Returns
You have the right to return products purchased from Network-switch.com under the following conditions:
Eligibility for Return: Items can be returned within 30 days from the date of delivery, provided that the product is in its original condition, unused, and in the original packaging.
Non-returnable Items: Certain items such as personalized or custom-made products, and items marked as non-returnable at the time of purchase, cannot be returned.
Return Process: To initiate a return, please contact our customer support team at help@network-switch.com. You will be provided with instructions on how to return the product and obtain a return authorization number if necessary.
Refunds
Refund Process: Once we receive your returned item and inspect it, we will process your refund to the original method of payment within 7-10 business days.
Refund Conditions: Refunds will be issued for the purchase price of the item, excluding any shipping, handling, or other additional fees. If the product is returned damaged, used, or missing parts, a partial refund may be issued.
Exchanges
If you would prefer to exchange an item for a different size, color, or model, please follow the same return process. Once we receive the returned product, we will send the replacement at no additional charge, based on availability.
Shipping Costs
Return Shipping Fees: You are responsible for paying the return shipping costs unless the item is defective, damaged, or incorrect.
Refund for Shipping Costs: Shipping costs are non-refundable, except in the case of defective or incorrect items.
Damaged or Incorrect Items
If you receive a damaged or incorrect item, please contact our customer service team within 7 days of receiving the product. We will exchange once the return is received.
Contact Us
If you have any questions or concerns about returns or refunds, please contact us at:
Email: help@network-switch.com
Before returning any products, please contact us to explain the issues you are experiencing. In many cases, we can resolve the problem through technical support, and you won't need to return the product.
If there are irreparable defects in the device, you can return it to us for repair or replacement under our twelve-month warranty. Simply reach out to us, and we will provide you with a return code, our return address, and any additional instructions.
Please do not return any items without first contacting us. We will guide you through the process, including the appropriate shipping methods.