Cisco ESW-520-24P-K9 24 Ports Switch
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Cisco ESW-520-24P-K9 24 Ports Ethernet Switch Small Business Refurbished

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Part Number#: ESW-520-24P-K9
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Short Description:
ESW-520-24P-K9 Small Business Pro Esw-520-24p Managed Switch 24 Power Over Ethernet (PoE) Ethernet Ports And 2 Combo Gigabit Small Form-Factor Pluggable (SFP) Ports And 2 Ethernet Ports | Made by Cisco | Refurbished
Product Condition:
Warranty provided by ALLHDD.COM:
90 Days

Product Overview of the 24 Ports Ethernet Switch

In the ever-evolving landscape of networking solutions, Cisco has consistently been a frontrunner in providing robust and efficient products. One such offering is the Cisco ESW-520-24P-K9, a 24-port Ethernet switch specifically designed for small businesses. In this comprehensive guide, we will delve into the features, benefits, and key considerations associated with the Cisco ESW-520-24P-K9.

Cisco ESW-520-24P-K9

The Cisco ESW-520-24P-K9 is a compact yet powerful Ethernet switch that offers 24 ports for seamless connectivity. It is equipped with advanced features tailored to meet the networking needs of small businesses, providing a solid foundation for building a reliable and high-performance network infrastructure.

Key Features

  • 24 Ports: The switch comes with 24 Ethernet ports, allowing for the connection of numerous devices, such as computers, printers, IP cameras, and VoIP phones, making it suitable for various business environments.
  • Power over Ethernet (PoE): One of the standout features of the ESW-520-24P-K9 is its PoE support. This means it can deliver both data and electrical power over the Ethernet cables, simplifying the deployment of devices like IP cameras and VoIP phones.
  • Compact Design: The compact form factor makes it easy to integrate into small office spaces, while still delivering robust performance.
  • Layer 2 Switching: The switch operates at Layer 2 of the OSI model, facilitating efficient data transfer within the local network.
  • Quality of Service (QoS): QoS capabilities ensure that critical applications receive priority, optimizing network performance.
  • Security Features: The ESW-520-24P-K9 includes security measures such as MAC-based port security and 802.1X authentication, enhancing the overall network security posture.

Technical Specifications

Switching Capacity

The ESW-520-24P-K9 boasts a substantial switching capacity, allowing for high-speed data transfer within the network. With a switching capacity of [X] Gbps, this switch can handle the demands of a small business environment with ease.

PoE Budget

The Power over Ethernet budget is a crucial specification, indicating the maximum power the switch can deliver to connected PoE devices. The ESW-520-24P-K9 has a PoE budget of [X] watts, ensuring sufficient power for devices like IP cameras and VoIP phones.

Form Factor and Dimensions

The compact form factor of the ESW-520-24P-K9 makes it suitable for deployment in limited spaces. With dimensions of [X] inches by [X] inches, this switch can be easily accommodated in small network closets or mounted on walls.

Performance Metrics

Forwarding Rate: The forwarding rate of [X] Mpps (Million Packets Per Second) ensures efficient data transfer within the network.

MAC Address Table Size: The switch's MAC address table size of [X] addresses enables it to manage a considerable number of connected devices.

Benefits of Cisco ESW-520-24P-K9


Small businesses often experience growth, and the ESW-520-24P-K9 is designed to scale with the increasing demands of the network. With 24 ports, it provides ample room for connecting more devices as the business expands.

Simplified Deployment

The inclusion of Power over Ethernet simplifies the deployment of devices like IP cameras and VoIP phones, eliminating the need for additional power sources and reducing cable clutter.

Enhanced Security

The ESW-520-24P-K9 prioritizes network security with features like MAC-based port security and 802.1X authentication, safeguarding the network against unauthorized access.


Cisco is a renowned name in the networking industry, and the ESW-520-24P-K9 reflects the brand's commitment to reliability. The switch is built to deliver consistent performance, ensuring that the network remains stable and available.

Use Cases

Small Office Networks

The ESW-520-24P-K9 is an ideal solution for small offices with a limited number of users and devices. Its compact design and PoE capabilities make it easy to deploy in spaces where efficiency and simplicity are crucial.

Retail Environments

Retail businesses often require a network infrastructure that can support multiple point-of-sale terminals, security cameras, and inventory management systems. The ESW-520-24P-K9, with its PoE support, is well-suited for such environments.

Professional Services Offices

Law firms, accounting offices, and other professional service providers can benefit from the ESW-520-24P-K9's reliable performance and security features, ensuring smooth day-to-day operations.

General Information about the Cisco ESW-520-24P-K9

  • Manufacturer: Cisco
  • Model Number or SKU# ESW-520-24P-K9
  • Product Series: ESW 500
  • Product Type: Ethernet Switch

Interfaces/Ports of Manageable Switch

  • Total Number of Ports: 26
  • Total Number of Network Ports: 24
  • 24 x Fast Ethernet Network

Port/Expansion Slot Details

  • 2 x Gigabit Ethernet Expansion Slot
  • Performance for 26 Ports Ethernet Switch:
  • Ethernet Technology: Gigabit Ethernet

Network Technology

  • 10/100/1000Base-T
  • 10/100Base-TX

I/O Expansions

  • Number of Total Expansion Slots: 2
  • Expansion Slot Type: SFP
  • Shared SFP Slot: Yes
  • Number of SFP Slots: 2

Network and Communication

  • Layer Supported: 2

Management and Protocols

  • Manageable: Yes
  • Simple Network Management Protocol (SNMP):
  • SNMP versions 1, 2c, and 3 with support for Traps
  • Remote Monitoring (RMON):
  • Embedded RMON software agent supports 4 RMON groups (history, statistics, alarms, and events) for enhanced traffic management, monitoring, and analysis

Environmental Parameters

  • Operating temperature: 32°F to 104°F (0°C to 40°C)
  • Storage temperature: -4°F to 158°F (-20°C to 70°C)
  • Operating humidity: 10% to 90%, relative, non-condensing
  • Storage humidity: 10% to 95%, relative, non-condensing

In summary, the Cisco ESW-520-24P-K9 24 Ports Ethernet Switch for Small Business is a reliable and feature-rich networking solution tailored to the unique needs of small enterprises. With its 24 ports, PoE support, and robust security features, this switch provides the foundation for a scalable, secure, and efficient network infrastructure. Whether deployed in small offices, retail environments, or professional service offices, the ESW-520-24P-K9 stands out as a versatile and dependable networking solution from a trusted industry leader.

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.

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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.
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Important notes:

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

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Worldwide Shipping Options:

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UPS®/FedEx® International Priority

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UPS®/FedEx® Ground Shipping Canada

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