Cisco CISCO2821 2 Ports Integrated Services Router
If you need a large quantity of CISCO2821 product - call us through our toll-free number at (800) 675 5044 or request a quote at live chat and our sales manager will contact you shortly.
Looking for assistance? Connect with one of our experts
+1 (800) 675 5044 (Toll-Free)
FREE Shipping. We are accepting NET 30 Days Purchase Orders. Get a decision in seconds, without affecting your credit.

Cisco CISCO2821 2 Ports Integrated Services Router External Refurbished

Availability: In Stock
Part Number#: CISCO2821
List Price was: $919.23
Your Price:
You Save: $680.23 (74% off)

Additional 5% Discount on Checkout

Short Description:
CISCO2821 External 2u Modular AC PWR 2GE 4HWICs 3PVDM 1NME-X 2AIM IP Base 128F/512D Gigabit Ethernet 2 Ports Integrated Services Router | Made by Cisco | Refurbished
Product Condition:
Warranty provided by ALLHDD.COM:
90 Days

Product Details for the Cisco CISCO2821 2 Ports Integrated Services Router

The Cisco CISCO2821 is a 2U modular router designed for external use. It belongs to the Integrated Services Router (ISR) series, which is renowned for its versatility and performance. This 2 ports router is equipped with multiple features, making it suitable for various networking scenarios. The CISCO2821 is a 2U (2 rack units) modular router, meaning it can be mounted in a standard 19-inch rack. Its modular design allows for flexibility and scalability, making it suitable for a wide range of networking needs.

Key Features of External 2u Modular Router

Power and Connectivity

The router is equipped with an AC power supply, ensuring reliable and continuous operation. With 2 Gigabit Ethernet ports, the CISCO2821 facilitates high-speed data transfer and efficient communication within the network.

Expansion Slots

The CISCO2821 boasts four High-Speed WAN Interface Card (HWIC) slots, allowing users to add a variety of interface cards to meet their connectivity needs. These slots support a range of modules, enhancing the router's functionality and ensuring compatibility with different network technologies.

Voice and Video Capabilities

For organizations requiring voice and video integration, the CISCO2821 comes with three Packet Voice Digital Signal Processor Modules (PVDM) slots. This feature enables the router to support voice and video applications, making it a comprehensive solution for unified communications.

Network Module

The router includes one Network Module Enhanced (NME-X) slot, offering additional flexibility for integrating different network services and applications. This module is essential for organizations seeking to deploy specific networking functionalities without compromising the router's performance.

Advanced Integration Modules (AIM)

With two Advanced Integration Module (AIM) slots, the CISCO2821 supports additional processing capabilities. This is crucial for tasks that demand enhanced performance, such as security features and encryption services. The AIM slots make the router adaptable to evolving security requirements.

IP Base Software

The Cisco CISCO2821 comes with IP Base software, providing essential routing and switching capabilities. This software package ensures a solid foundation for network operations and can be upgraded to higher-level software packages for more advanced features.

Storage Capacity

Equipped with 128 MB of flash memory and 512 MB of dynamic random-access memory (DRAM), the CISCO2821 offers ample storage and operational capabilities. This is essential for handling a variety of tasks simultaneously and ensuring smooth network operations.

Gigabit Ethernet Ports

The inclusion of two Gigabit Ethernet ports in the CISCO2821 enhances its network connectivity capabilities. These high-speed ports facilitate rapid data transfer within the network, supporting bandwidth-intensive applications and ensuring efficient communication.

Form Factor and Design

The Cisco CISCO2821 is a 2U (2 rack units) router, emphasizing a modular design that allows for flexibility in configuration. Its external structure ensures easy integration into existing network setups, and the 2U form factor speaks to its robust capabilities without occupying excessive rack space.

Modular Architecture

One of the standout features of the CISCO2821 is its modularity. This router supports various modules, enabling users to customize and scale their networking infrastructure based on specific requirements. The modular architecture is particularly beneficial for businesses that anticipate future growth and need a router that can adapt to evolving needs.

Security Features

VPN Support

Security is a paramount concern in modern networks, and the CISCO2821 addresses this with its support for Virtual Private Network (VPN) technologies. The router can establish secure connections over the internet, ensuring the confidentiality and integrity of transmitted data.

Firewall Capabilities

With the capability to support advanced security features through its AIM slots, the CISCO2821 can function as a robust firewall. This is crucial for protecting the network against unauthorized access and potential security threats.

Intrusion Prevention System (IPS)

Incorporating an Intrusion Prevention System, the router actively monitors and analyzes network traffic to identify and prevent potential security breaches. This additional layer of security enhances the overall network defense mechanisms.

Performance and Reliability

In terms of performance, the router is equipped with a powerful CPU and has a large amount of memory, which allows it to handle a high amount of routing and switching traffic. It also supports advanced Quality of Service (QoS) features that allow you to prioritize critical network traffic and prevent network congestion.

In terms of reliability, the Cisco 2821 includes several features to help ensure that your network remains up and running. For example, it supports redundancy through Hot Standby Router Protocol (HSRP), which allows for automatic failover in the event of a primary router failure. Additionally, it supports several VPN technologies, such as IPSec and Secure Sockets Layer (SSL), to help secure your network from unauthorized access and keep your data safe.

The Cisco 2821 also has a wide range of physical interfaces that provide multiple options for WAN and LAN connections, and the router is built with a modular design that allows for easy expansion and upgrades. All of these features ensure that the 2821 can handle the demands of a busy network and provide a high level of performance and reliability.

Interface Provided for Digital Workplace

The Cisco 2821 Integrated Services Router provides a variety of interfaces to support different types of network connections and services, making it suitable for use in a digital workplace.

One of the most notable interfaces provided on the Cisco 2821 is the Gigabit Ethernet interface. This interface can be used to connect the router to other network devices, such as switches and servers, at speeds of up to 1000Mbps. This allows for fast and efficient data transfer between devices on the network.

Another important interface provided on the Cisco 2821 is the serial interface. This interface can be used to connect the router to other network devices or service providers using serial cables. This interface can be used for a variety of purposes, such as connecting to a WAN or a leased line for Internet access.

The router also provides an ISDN interface, which is a digital phone line that can be used for WAN connectivity and remote access. This interface can be used as a backup for the primary WAN link or as a primary link in some cases.

The Cisco 2821 also has USB ports that can be used to connect USB storage devices, such as flash drives, for storing backups of the router's configuration and other important data.

All those interfaces are manageable and configurable via the Cisco IOS software which allows for advanced features and customization with the software, as well as providing CLI and web GUI interfaces for easy configuration and management.

General Information about this Cisco CISCO2821 Integrated Services Router

  • Manufacturer: Cisco
  • Part Number or SKU# CISCO2821
  • Product Series: 2800
  • Product Type: Integrated Services Router

Technical Information

  • Total Number of Ports: 2
  • Management Port: Yes
  • Number of Network (RJ-45) Ports: 2

I/O Expansions

  • Number of Total Expansion Slots: 12
  • Expansion Slot Type: AIM
  • Expansion Slot Type: HWIC
  • Expansion Slot Type: NME-X
  • Expansion Slot Type: PVDM
  • Expansion Slot Type: EVM

Network & Communication

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


  • Standard Memory: 256 MB
  • Maximum Memory Supported: 1GB
  • Memory Technology: DRAM
  • Flash Memory: 64 MB
  • Memory Card Supported: Compact Flash

Power Description

  • Input Voltage: 110 V AC, 220 V AC
  • Redundant Power Supply Supported: Yes
  • Cisco IOS Version: 12.3(8)T - The operating system for Cisco devices.
  • Firewall Protection: Enhances security by providing a firewall.
  • Hardware Encryption: Ensures data security through hardware-based encryption.
  • VPN (Virtual Private Network): Supports secure communication over the Internet.
  • MPLS Support: Enables efficient and flexible network routing.
  • URL Filtering: Allows control over internet access by filtering URLs.
  • 4 (4) x HWIC (High-Speed WAN Interface Card) slots.
  • 2 (2) x AIM (Advanced Integration Module) slots.
  • 1 (1) x NME-X (Network Module Enhanced Express) slot.
  • 1 (1) x EVM (Enhanced Voice Module) slot.
  • 3 (3) x PVDM (Packet Voice DSP Module) slots.
  • 2 Memory slots.
  • 1 CompactFlash Card slot.
  • 2 x Network - Ethernet 10Base-T/100Base-TX/1000Base-T - RJ-45.
  • 2 x USB ports for additional connectivity.
  • 1 x Management - Console for device configuration.
  • 1 x Network - Auxiliary for supplementary network connections.

Finally, the Cisco CISCO2821 Integrated Services Router stands out as a versatile and powerful solution for modern networking challenges. Its modular architecture, power redundancy, diverse interfaces, and robust software features make it well-suited for a variety of deployment scenarios. Whether used in data centers, enterprises, or service provider networks, the CISCO2821 offers the flexibility and performance needed to adapt to the dynamic nature of today's networking environments. As technology continues to evolve, routers like the CISCO2821 play a crucial role in enabling reliable and efficient communication within and between networks.

Product Condition:
Warranty provided by ALLHDD.COM:
90 Days

About Refurbished Products

Refurbished products are typically refurbished by an Original Manufacturer or an affiliate of the manufacturer or 3rd party facility. This product may have minor blemishes due to normal product usage and doesn't necessarily come with documentation and software unless indicated, but has been well tested and generally has never had any defects.

Here, you can check more available conditions of your desired product CISCO2821 at a competitive price. We are trying our best to meet your needs on the enterprise-level computer, server, data centre, and networking hardware. You are welcome to ask our live chat or get live representative support over the phone.


Please choose your location for calculate shipping cost.


ALLHDD guarantees that the products will not have defects in material that will affect the product's functionality during the Standard Warranty Period. The warranty period starts when the merchandise/items from our warehouse.

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.

What is not covered by our warranty?

The reason why our warranty does not cover any problem caused by the following conditions:

(a) misuse of hardware; accidental damage; carelessness product(s) damage; shock; temperature beyond the specification of any product; faulty installation; operation; modification of goods;

(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.

What is the Manufacturer/Brand Warranty?

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).

For the server parts (i.e., Dell, HPE) to get Full coverage of the warranty server must have a full 3- 5 years warranty. However, ALLHDD.COM will cover the warranty duration if any Manufacturer doesn't support the advertised warranty and there is no refund for those.
Final Sale items are non-returnable/refundable in any situation. Any question? please ask our team before the shipment.

Important notes:

We can provide additional warranty service/support for any product you purchase from us if you need additional warranty coverage before finalizing the order from ALLHDD.Com. You need to ask in live chat/help or call us for more information.

Individual product warranty mentioned on each item product description page/detail page.

Free Technical support on purchased items, our expert consultancy over the phone, by email, by live chat, or by remote login.


Shipping Options and Estimated Delivery Time

UPS Shipping Options:

FREE UPS® Ground (Free shipping to all orders for 48 states!)
Estimated delivery time: 4-7 business days

UPS 3 Day Select®
Estimated delivery time: 3 business days

UPS 2nd Day Air®
Estimated delivery time: 1-2 business days, Delivery by 10:30 AM or 2:00 PM

UPS Next Day Air® Standard Overnight
Estimated delivery time: Overnight 2-5 PM, Standard Overnight Delivery.

UPS Next Day Air® - Priority Overnight
Estimated delivery time: Overnight Delivery (Next Business Day) Delivery by 10:30 AM or 12:00 PM

UPS Next Day Air® First Overnight - Early A.M
Estimated delivery time: Overnight 8:00 AM, Early morning, overnight delivery for your time-critical shipments.

UPS® First Overnight - Saturday
Estimated delivery time: Overnight 8:30 AM – Saturday

FedEx Shipping Options:

FedEx Ground®
Estimated delivery time: (4–7 business days in the contiguous 48 states)
*For residential delivery via FedEx Ground use FedEx Home Delivery®
Estimated delivery time: 4−7 business days, based on the distance to the destination.

FedEx Express Saver®
Estimated delivery time: 3 business days (by 4:30 PM to U.S. businesses; by 8:00 PM to residences)
Available throughout all 50 states (except Hawaii and Alaska)

FedEx 2Day®
Estimated delivery time: 2 business days (by 4:30 PM to U.S. businesses; by 8:00 PM to residences)
Available throughout all 50 states

FedEx Standard Overnight®
Estimated delivery time: Next-business-day (by 4:30 PM to U.S. businesses and by 8:00 PM to residences)
Available throughout all 50 states (Hawaii is outbound only)

FedEx Priority Overnight®
Estimated delivery time: Next-business-day (by 10:30 PM to U.S. businesses, noon to most residences)
Available throughout all 50 states

FedEx First Overnight®
Estimated delivery time: Next-business-day (by 8:30 or 9 AM to most areas)
Available throughout all 50 states

Worldwide Shipping Options:

UPS®/FedEx® International Economy

Estimated delivery time: 4-7 business days

UPS®/FedEx® International Priority

Estimated delivery time: 2-4 business days

UPS®/FedEx® Ground Shipping Canada

Estimated delivery time: 5-8 business days

Important notes:

  • The processing of orders with Ground Shipping can take up to 24-48 hours. But we try to process all orders the same day.
  • We are not responsible for weather problems that may affect the delivery of goods by carriers. We cannot guarantee the exact delivery time, regardless of the carriers' claims.
  • If you have any specific delivery time requirements, please contact our customer support and someone from our customer service team will be able to help you.
  • You can estimate the shipping cost from the products detail page, also available on the checkout page
  • The shipping cost depends on box dimensions, weight, and zip/postal code
  • To get a FedEx® delivery service you need to mention it on the checkout page notebox.
  • For urgent shipments, please contact our customer service.
  • Shipping cut off 4:00 PM (Monday-Friday) and available blind drop shipment.