Cisco C3925-AX/K9 3 Port Networking Router
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Why C3925-AX/K9 Cisco 3925 Application is the best?

Availability: In Stock
Part Number#: C3925-AX/K9
3% Discount on Checkout

Short Description:
C3925-AX/K9 3925 Application Experience-Router Modular-Gigabit Ethernet | Made by Cisco | Refurbished

Interface Types of This Product: Router Other

Product Condition:
Warranty provided by ALLHDD.COM:
90 Days
We are giving specifications below, why one should consider procuring Cisco Other Router Networking features, a general overview, description, performance specification, relevant images, a competitive price infographic, and technical information about the C3925-AX/K9 model with compatibility.

Introduction to the Cisco Router

The Cisco 3925 Application Experience Router (C3925-AX/K9) is a powerful and versatile network device that is designed to provide advanced routing, security, and application optimization capabilities for enterprise, branch, and small office networks. The C3925-AX/K9 is a modular router that provides enhanced performance and flexibility to support a wide range of network services and applications.

The C3925-AX/K9 router supports a variety of interfaces, including Gigabit Ethernet, T1/E1, and serial, which allows it to connect to a wide range of devices and networks. It also supports a variety of advanced routing protocols, such as Border Gateway Protocol (BGP), Open Shortest Path First (OSPF), and Routing Information Protocol (RIP), to help ensure optimal routing and performance.

In terms of security, the C3925-AX/K9 includes a variety of advanced security features, such as firewall, VPN, Intrusion Prevention System (IPS), and Identity Services Engine (ISE), to help protect the network and its resources from a wide range of security threats and attacks.

The C3925-AX/K9 also supports a variety of application optimization features, such as Quality of Service (QoS), link efficiency mechanisms, and Application Visibility and Control (AVC), which can be used to optimize the performance of specific applications and services.

The C3925-AX/K9 is also designed to be highly manageable and configurable, with a web-based interface and a variety of management and monitoring tools. It also supports a variety of network management protocols, such as Simple Network Management Protocol (SNMP) and Cisco Discovery Protocol (CDP), to help make it easier to monitor and manage the network.

Maximizing Performance and Scalability

Maximizing the performance and scalability of a Cisco 3925 Application Experience Router (C3925-AX/K9) involves implementing strategies and techniques to ensure that the router can handle the demands of a growing network, while maintaining optimal performance and reliability. Here are a few ways to maximize the performance and scalability of the C3925-AX/K9 router:

  • Utilizing Modular interfaces: The C3925-AX/K9 has a variety of modular interfaces, such as Gigabit Ethernet, T1/E1, and serial, that can be used to increase the overall capacity and performance of the router. By adding more interfaces, you can increase the number of devices that can be connected to the network and also increase the throughput of the router.
  • Utilizing Quality of Service (QoS): Quality of Service (QoS) is a set of technologies and techniques that can be used to prioritize and manage network traffic. By implementing QoS, you can ensure that critical applications and services receive the bandwidth and resources they need, while non-critical traffic is managed in a way that does not impact the performance of the network.
  • Utilizing advanced routing protocols: C3925-AX/K9 supports advanced routing protocols such as Border Gateway Protocol (BGP), Open Shortest Path First (OSPF), and Routing Information Protocol (RIP) which allows for optimal routing and performance.
  • Utilizing Advanced security: The router includes a variety of advanced security features, such as firewall, VPN, Intrusion Prevention System (IPS), and Identity Services Engine (ISE), to help protect the network and its resources from a wide range of security threats and attacks. By implementing these security features, you can help to ensure that the network is protected from potential security threats, which can help to increase overall network performance and scalability.
  • Utilizing Network Management tools: Cisco provides several network management tools that can be used to monitor, troubleshoot, and optimize the network. These tools can provide detailed information about the network and its resources, which can be used to identify and resolve performance and scalabiliy.

Routing Protocols

The Cisco 3925 Application Experience Router (C3925-AX/K9) supports a variety of routing protocols that can be used to optimize the performance and reliability of the network. Here are a few of the main routing protocols that the C3925-AX/K9 supports:

  • Routing Information Protocol (RIP) : It's a distance-vector routing protocol that uses hop count as a metric to determine the best path to a destination. It's simple to configure and implement but it has a limitation of 15 hops.
  • Open Shortest Path First (OSPF): It's a link-state routing protocol, which means that each router in an OSPF network advertises its own link-state information to all other routers in the network. OSPF uses a metric based on bandwidth, delay, reliability, and load to determine the best path to a destination.
  • Border Gateway Protocol (BGP): It's an exterior routing protocol used to exchange routing information between different autonomous systems (ASs) on the Internet. BGP is commonly used to establish routing between different service providers.
  • Enhanced Interior Gateway Routing Protocol (EIGRP): It's a Cisco proprietary routing protocol that is similar to OSPF in terms of functionality and features. EIGRP is considered to be a more advanced and efficient protocol than OSPF and is often used in large enterprise networks.
  • Intermediate System-to-Intermediate System (IS-IS): It is a link-state routing protocol that is similar to OSPF in terms of functionality and features. IS-IS is often used.

General Information

  • Manufacturer Cisco
  • Manufacturer Part Number C3925-AX/K9
  • Product Series 3900
  • Product Model 3925
  • Product Name 3925 Router
  • Product Type Router

Interfaces / Ports

  • Total Number of Ports 3
  • USB Yes
  • Powerline No
  • Management Port Yes
  • Number of Broadband (RJ-45) Ports 3

I/O Expansions

  • Number of Total Expansion Slots 13
  • Expansion Slot Type SFP (mini-GBIC)
  • Expansion Slot Type ISM
  • Expansion Slot Type EHWIC
  • Expansion Slot Type PVDM

Network & Communication

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

Management & Protocols

  • Security Features
  • ACL
  • IPsec
  • L2TPv3
  • Cisco IOS Firewall
  • Cisco IOS Zone-Based Firewall
  • Cisco IOS IPS
  • Cisco IOS Content Filtering
  • Flexible Packet Matching (FPM)


  • Standard Memory 1 GB
  • Maximum Memory 8 GB
  • Memory Technology DDR2 SDRAM
  • Flash Memory 256 MB

Power Description

  • PoE (RJ-45) Port No
  • Input Voltage 220 V AC
  • Input Voltage 110 V AC
  • Power Source Power Supply


  • Package Contents
  • 3925 Router
  • Services Performance Engine (SPE100)
  • Certifications & Standards Safety:
  • UL 60950-1
  • CAN/CSA C22.2 No. 60950-1
  • EN 60950-1
  • AS/NZS 60950-1
  • IEC 60950-1
  • EMC:
  • 47 CFR, Part 15
  • ICES-003 Class A
  • EN55022 Class A
  • CISPR22 Class A
  • AS/NZS 3548 Class A
  • VCCI V-3
  • CNS 13438
  • EN 300-386
  • EN 61000 (Immunity)
  • EN 55024
  • CISPR 24
  • EN50082-1
  • Telecom:
  • TIA/EIA/IS-968
  • CS-03
  • ANSI T1.101
  • ITU-T G.823, G.824
  • IEEE 802.3
  • RTTE Directive

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.

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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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:

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

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