Cisco ISR4321 K9 Network Interface Module
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ISR4321/K9 Cisco 2 Ports 4321 Integrated Service Router New

Availability: In Stock
Part Number#: ISR4321/K9
List Price was: $2220.68
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Short Description:
ISR4321/K9 Integrated Service Router (ISR) Series 2 Ports 4 Slots Rack-Mountable, Wall Mountable Gigabit Ethernet Security Router | Made by Cisco | New Factory Sealed

Interface Types of This Product: Router 2 Port

Product Condition:
New Retail Factory Sealed
Warranty provided by ALLHDD.COM:
90 Days
We are giving specifications below, why one should consider procuring Cisco 2 Port Router Networking features, a general overview, description, performance specification, relevant images, a competitive price infographic, and technical information about the ISR4321/K9 model with compatibility.

More Information

The Cisco ISR 4321 is a router designed for small and medium-sized businesses, enterprise branch offices, and service provider edge applications. It is equipped with 2 network interface slots and 4 service module slots, which can be used to add a variety of connectivity and services options. The router is powered by a dual-core Intel Xeon processor and has 2GB of RAM and 8GB of flash memory, making it capable of handling a wide range of routing, security, and data services applications. It also supports Cisco IOS XE software, which provides a flexible and scalable platform for implementing advanced routing and services functions.

High-performance of Security Router

The Cisco ISR 4321 is a high-performance router designed for small and medium-sized businesses, enterprise branch offices, and service provider edge applications. It is equipped with 2 network interface slots and 4 service module slots, which can be used to add a variety of connectivity and services options. The router is powered by a dual-core Intel Xeon processor and has 2GB of RAM and 8GB of flash memory, making it capable of handling a wide range of routing, security, and data services applications. It also supports Cisco IOS XE software, which provides a flexible and scalable platform for implementing advanced routing and services functions.

Quality of Service (QoS) Features of the ISR4321/K9 Cisco ISR 4321 Router

The Cisco ISR4321/K9 is a security router that provides advanced routing and security services for small to medium-sized organizations. It also supports Quality of Service (QoS) features to help ensure that critical network traffic receives priority treatment over less important traffic.

Some of the QoS features available on the Cisco ISR4321/K9 include:

  • Traffic classification and marking: The router can classify traffic based on a variety of criteria, such as source/destination IP address, protocol type, and port number. It can then mark traffic with a priority level, which is used to determine how the traffic should be treated by other QoS features.
  • Congestion management: The router can use various congestion management techniques, such as queuing and scheduling, to ensure that high-priority traffic is transmitted before lower-priority traffic. This can help prevent network congestion and ensure that critical traffic is not delayed.
  • Traffic shaping: The router can limit the amount of bandwidth that is available to certain types of traffic, ensuring that critical traffic always has enough bandwidth to meet its needs.
  • Link efficiency: The router can use link efficiency techniques such as header compression and payload compression to reduce the amount of data that is transmitted over the network. This can help improve overall network performance, especially for low-bandwidth links.
  • Voice and video optimization: The router can prioritize voice and video traffic over other types of traffic, using features such as RTP header compression and jitter buffering. This can help ensure that real-time communication applications such as VoIP and video conferencing work smoothly and without interruption.

These are just a few examples of the QoS features available on the Cisco ISR4321/K9. To configure and optimize QoS on your router, you should refer to the Cisco IOS Quality of Service Solutions Configuration Guide, which provides detailed instructions on how to configure QoS for various network scenarios.

General Information about this Cisco ISR4321/K9

  • Manufacturer: Cisco
  • Part Number or SKU # ISR4321/K9
  • Product Series: 4000
  • Product Model: 4321
  • Product Name: 4321 Router
  • Product Type: Router

Technical Information of Router 4000 Series

  • Total Number of Ports: 2
  • USB: Yes
  • Powerline: No
  • Management Port: Yes
  • Serial V.35 Interface: No
  • Number of Network (RJ-45) Ports: 2

I/O Expansions for 2 Ports Integrity Service Router

  • Number of Total Expansion Slots: 4
  • Expansion Slot Type: Smart Interface Card (SIC)
  • Expansion Slot Type: Network Interface Module (NIM)
  • Expansion Slot Type: SFP

Network & Communication of SFP Router

  • Network Technology: 10/100/1000Base-T
  • Ethernet Technology: Gigabit Ethernet

Management & Protocols

  • Security Features:
  • ACL
  • AAA
  • IPsec

Memory ISR4321 K9

  • Standard Memory: 4 GB
  • Maximum Memory: 8 GB
  • Memory Technology: DDR3 SDRAM
  • Flash Memory: 4 GB

Power Description

  • Input Voltage 230 V AC
  • Input Voltage 120 V AC
  • Power Source PoE
  • Power Source Power Supply
  • Redundant Power Supply No

Dimensions & Weight

  • Width: 14.6 Inch
  • Depth: 11.6 Inch
  • Height: 1.8 Inch
  • Weight: 7.72 Lbs

Routers lead the line as the first line of network security in homes and offices. It prevents intrusion into a network while creating a firewall to provide the highest level of security on several network types. They are the best ways of keeping computer systems, network systems, and information contained in them safe from intrusion.

A router is designed to be more capable than several other network devices such as hubs or switches that can only carry out basic network functions. For instance, a hub only transfers data between network devices without analyzing or doing anything with those data. On the other hand, routers are able to analyze data sent between network devices. They can change the packaging of such data and send it over to a different network.

Routers are the perfect devices to share an internet connection between multiple computers in home networks. A router typically connects to the modem using a network cable. Router networking occurs via a WAN port or the internet. There are also wireless routers that connect to devices using different wireless standards.

Important Features

Multi-core Processor

The hardware inside these routers allows them to cope with several network use at the same time. Many of these routers come with dual-core and quad-core processors. These processor options allow them to handle lots of data more effectively. Users can use their Wi-Fi routers for activities such as video streaming, online gaming, data backups, and more. Even while carrying out those operations, the routers perform at the highest levels.

Multi-band options

Users will get routers that broadcast wireless signals over two frequencies (for dual-band) or more (for tri-band and others). These routers run at frequencies that can cover a wide expanse of area. They are not congested and are perfect for office buildings, homes, and large enterprises. Clients will find routers that emit their signals between 2.4 GHz and 5GHz.

Built-in Security Features

These router networking devices also come with security features such as device quarantine, firmware updates, automatic updates, and more. The features allow them to provide network-level protection against attacks. With these features, cybercriminals will be unable to infiltrate home networks.

Types of Routers

There are several types of routers that users can benefit from. Some of them include:

  • Core Routers. These are the types used by Internet Service Providers. They are the fastest and most powerful types. They sit at the center of the internet and forward data through the main fiber Optics.
  • Wireless Routers. These work in a similar manner as a home or business LAN. However, they give room for better mobility for laptops, tablets, and other portable devices. These types offer transmission over short distances.
  • Enterprise Routers. These are the types employed by large companies. Organizations use enterprise routers to connect their networks to these core routers.
  • Branch Routers. These types connect an enterprise's remote offices to its Wide Area Network (WAN). They come with improved features such as wireless LAN management, time-division multiplexing, WAN acceleration, and more.
  • Edge Routers. These are the most commonly used types in homes and small businesses. They are low-capacity devices that connect to the public internet or private WAN, or external LAN.
  • Logical Routers. They function similarly to hardware to create several network routes.

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What does ALLHDD.Com warranty cover?

30-days to 3 years warranty:

Replacement or refund. In the case of material defects, we will try to replace the product first. The product will be replaced before the expiration of the original warranty. For any failure of hardware, if we cannot process the replacement of the product(s)/model(s), we will refund the original selling/invoiced price. The shipping costs and sales tax, if any, are non-refundable. ALLHDD retains the right to decide whether the item(s) will process for replacement or refund.

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(b) any misuse outside the instructions in the user manual for any specific product;

(c) damaged caused by other hardware or equipment. The warranty will void if the item is returned with physical damage, damage to the retail box, removed from the box, counterfeit labels/labelled by them, or any modifications of internal and external covers. Data loss or damages to any other equipment we do not cover by our offered warranty.

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In general, a manufacturer's warranty service/support is a written guarantee to the buyer of a product. Its terms assure the replacement or repair of the product, if necessary, within a specified period after the purchase (2-5 years depending on the brand/manufacturer). It is typically included in the price of the product. Products are brand new and sealed and the original manufacturer box is complete with the Manufacturer's genuine warranty. For most of the brand new/retail products that come with the manual and box, exceptions may apply (i.e., Cisco, Juniper Networks).

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