Cisco SG500-28P-K9-NA 28 Ports Switch
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Cisco SG500-28P-K9-NA 28 Ports Switch Ethernet Manageable New

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Short Description:
SG500-28P-K9-NA Small Business SG500-28P 28-Ports 10/100/1000 RJ-45 Power over Ethernet (PoE) Stackable, Manageable, Rack-mountable Switch with 2x Small Form-Factor Pluggable (SFP) Ports | Made by Cisco | New Factory Sealed
Product Condition:
New Retail Factory Sealed
Warranty provided by ALLHDD.COM:
90 Days

Product Details of the Cisco 28 Ports Manageable Switch

In the realm of networking, the Cisco SG500-28P-K9-NA 28 Ports Ethernet Manageable Switch stands out as a powerful and versatile solution. This switch, manufactured by Cisco Systems, is designed to meet the demanding needs of modern businesses, providing a robust and efficient platform for network management. In this comprehensive guide, we will delve into the various aspects of the Cisco SG500-28P-K9-NA 28 Ports switch, exploring its features, functionalities, and the benefits it brings to the table.

Cisco SG500-28P-K9-NA

The Cisco SG500-28P-K9-NA is a member of the Cisco 500 Series Stackable Managed Switches. It boasts 28 ports, making it suitable for medium to large-scale networks. The "P" in its nomenclature indicates that it comes with Power over Ethernet (PoE) capabilities, which is a significant advantage for devices such as IP cameras and VoIP phones.

Key Features

Connecting Your Network with Versatility

The Cisco SG500-28P-K9-NA is equipped with a total of 28 ports, providing a robust foundation for connecting a wide array of devices to the network. This extensive port configuration ensures flexibility, making it suitable for both small-scale setups and larger, more complex network infrastructures.

Port Variety

The switch offers a mix of ports, including Ethernet and Gigabit Ethernet ports, catering to different bandwidth requirements. This diversity allows network administrators to tailor the network to specific needs, ensuring optimal performance for various devices.


With 28 ports at its disposal, the Cisco SG500-28P-K9-NA facilitates scalability, accommodating the growth of your network without compromising on efficiency. Whether you are expanding your business or enhancing your home network, the switch's scalable design proves to be a valuable asset.

Power over Ethernet (PoE): Streamlining Connectivity and Reducing Dependencies

One of the standout features of the Cisco SG500-28P-K9-NA is its Power over Ethernet (PoE) capabilities. This functionality enables the switch to deliver both data and power to compatible devices through a single Ethernet cable, eliminating the need for separate power sources. Let's explore the implications of PoE in more detail.

Simplified Wiring

The integration of PoE simplifies the wiring process, reducing clutter and complexity in your network setup. This is particularly beneficial in scenarios where devices such as IP cameras, VoIP phones, and access points need both data connectivity and power.

Cost Efficiency

By consolidating power and data delivery into a single cable, the Cisco SG500-28P-K9-NA contributes to cost efficiency. This is evident in the reduced need for additional power outlets and the associated infrastructure, ultimately lowering installation and maintenance expenses.

Manageability: Empowering Network Administrators

Efficient network management is paramount in ensuring the smooth operation of any network. The Cisco SG500-28P-K9-NA excels in this aspect, providing a high level of manageability that allows network administrators to configure and monitor the network with ease.

User-Friendly Interface

The switch comes equipped with a user-friendly interface that simplifies the configuration process. Intuitive dashboards and menus empower even those with limited networking expertise to navigate and manage the switch effectively.

Layer 3 Support: Elevating Network Capabilities with Intelligent Routing

The Layer 3 support of the Cisco SG500-28P-K9-NA marks a significant enhancement in its capabilities. By making routing decisions at the network layer, the switch becomes more adept at directing traffic, optimizing data flow, and enhancing overall network performance.

Intelligent Routing Decisions

Layer 3 support empowers the switch to make intelligent routing decisions based on network layer information. This capability enhances the efficiency of data transmission, reducing latency and ensuring that data reaches its destination optimally.

Subnet Segmentation

The switch's Layer 3 support facilitates subnet segmentation, allowing for the creation of distinct and isolated network segments. This not only enhances security by restricting access but also optimizes network resources for improved performance.

Stackable Design: Building a Unified, High-Performance Network

The stackable design of the Cisco SG500-28P-K9-NA sets it apart from conventional switches. This feature enables network administrators to create a unified, high-performance network by combining multiple switches. Let's delve into the advantages of this stackable design.

Scalable Architecture

Stacking multiple Cisco SG500-28P-K9-NA switches creates a scalable architecture, accommodating the growing needs of the network. This is particularly beneficial in enterprise settings where expansion is a constant requirement.

Gigabit Ethernet Ports

The switch comes equipped with Gigabit Ethernet ports, which allow for high-speed data transfer. These ports are essential for connecting devices that require rapid data exchange, such as servers, storage systems, and high-performance computers.

Power over Ethernet (PoE) Ports

One of the standout features of the SG500-28P-K9-NA is its PoE capability. This means that specific ports on the switch can deliver both data and electrical power to connected devices. This is particularly advantageous for devices like IP cameras, wireless access points, and VoIP phones, as it eliminates the need for separate power sources.

Combo Ports

The switch may also include combo ports, which offer versatility in connectivity. These ports can be used as either Gigabit Ethernet or Small Form-Factor Pluggable (SFP) ports, providing options for different types of network connections.

Power over Ethernet (PoE) in Depth

The PoE functionality of the Cisco SG500-28P-K9-NA is a game-changer in network design and management. Let's explore the intricacies of PoE and its implications for various devices.

PoE Standards Supported

The switch supports different PoE standards, such as IEEE 802.3af and IEEE 802.3at. These standards define the amount of power that can be delivered to connected devices, ensuring compatibility with a wide range of PoE-enabled equipment.

Applications of PoE

IP Cameras: PoE simplifies the installation of IP cameras by eliminating the need for separate power cables. This is especially beneficial for surveillance systems that require strategic camera placements.

VoIP Phones: Voice over Internet Protocol (VoIP) phones can be easily connected to PoE ports, streamlining the deployment of communication devices in an office environment.

Wireless Access Points (WAPs): WAPs can draw power from PoE ports, allowing for flexible placement without the constraints of power outlets.

IoT Devices: Internet of Things (IoT) devices, which are becoming increasingly prevalent, can benefit from the convenience and simplicity of PoE.

Power Budget Considerations

It's important to note that the switch has a specific power budget for PoE. Administrators must carefully manage this budget to ensure that the connected devices receive adequate power. This may involve prioritizing critical devices or investing in additional power supplies for larger deployments.

Network Management Capabilities

The manageability of the Cisco SG500-28P-K9-NA is a key factor that sets it apart in the world of switches. Let's explore the various management features that contribute to the efficient operation of networks.

Command Line Interface (CLI)

For users familiar with command line interfaces, the switch provides a CLI for advanced configuration and monitoring. This allows for precise control over the switch's settings and enables automation of certain tasks.

SNMP (Simple Network Management Protocol)

SNMP support is integral to the switch's manageability. SNMP enables network administrators to monitor the performance and health of the switch remotely. This is particularly useful for proactive troubleshooting and identifying potential issues before they impact network operations.

VLAN Support

Virtual Local Area Networks (VLANs) enable the segmentation of a network into smaller, isolated groups. The switch supports VLANs, providing administrators with the ability to logically organize and secure network traffic.

Layer 3 Routing Capabilities

Layer 3 routing is a significant feature that enhances the routing capabilities of the Cisco SG500-28P-K9-NA. Let's explore how Layer 3 support contributes to the switch's overall functionality.

Inter-VLAN Routing

With Layer 3 support, the switch can perform inter-VLAN routing. This means that traffic between different VLANs can be routed at the switch, reducing the need to send traffic to an external router. This enhances network efficiency and reduces latency.

Dynamic Routing Protocols

The switch supports dynamic routing protocols such as RIP and OSPF. These protocols enable the switch to dynamically learn and adapt to changes in the network topology, providing a scalable and adaptive routing solution.

IP Routing

In addition to VLAN routing, the switch supports IP routing, allowing it to make routing decisions based on IP addresses. This is essential for directing traffic between different IP subnets within the network.

Stackable Design for Scalability

The stackable design of the Cisco SG500-28P-K9-NA is a feature that contributes to its scalability and flexibility in network design.

Benefits of Stackable Switches

  • Unified Management: When switches are stacked, they can be managed as a single entity. This simplifies network administration and reduces the complexity of managing multiple individual switches.
  • High Availability: Stacking switches enhance network redundancy. In the event of a failure in one switch, traffic can be seamlessly rerouted through other switches in the stack, minimizing downtime.
  • Increased Bandwidth: Stacking allows for increased bandwidth between switches, enabling high-speed communication and data transfer within the network.
  • Simplified Expansion: As the network grows, additional switches can be easily added to the stack, providing a scalable solution for evolving business needs.

Security Features

  • Security is a top priority in network management, and the Cisco SG500-28P-K9-NA includes a range of features to enhance network security.
  • Access Control Lists (ACLs)
  • ACLs enable administrators to control the traffic that is allowed or denied based on defined rules. This is a powerful tool for securing the network and preventing unauthorized access.
  • Port Security
  • Port security features allow administrators to control which devices can connect to specific ports on the switch. This helps prevent unauthorized devices from accessing the network.
  • HTTPS and SSL for Secure Management
  • The switch supports secure management through HTTPS and SSL protocols. This ensures that management communications are encrypted, adding an extra layer of security to the management interface.
  • Guest VLANs
  • For organizations that need to provide network access to guests or external parties, the switch supports the creation of Guest VLANs. These VLANs can be isolated from the main network, enhancing security while still providing connectivity.

General Information about the Cisco SG500-28P-K9-NA

  • Manufacturer: Cisco
  • Model Number or SKU# SG500-28P-K9-NA
  • Product Series: 500
  • Product Type: Ethernet Switch

Interfaces / Ports

  • Total Number of Network Ports: 24
  • Number of PoE (RJ-45) Ports: 24
  • Stack Port: Yes
  • Number of Network (RJ-45) Ports: 24


  • Media Type Supported: Twisted Pair
  • Twisted Pair Cable Standard: Category 5
  • Ethernet Technology: Fast Ethernet, Gigabit Ethernet
  • Network Technology: 10/100/1000Base-T

I/O Expansions

  • Number of Total Expansion Slots: 4
  • Number of SFP Slots: 4

Network & Communication

  • Layer Supported: 2

Management & Protocols

  • Manageable: Yes
  • Management Options: DHCP, CLI, GUI, VLAN, QoS, SNMP
  • Features:
  • Flow control
  • Layer 2 switching
  • VLAN support
  • IPv6 support
  • Spanning Tree Protocol (STP) support
  • Rapid Spanning Tree Protocol (RSTP) support
  • Multiple Spanning Tree Protocol (MSTP) support
  • Access Control List (ACL) support
  • Quality of Service (QoS)
  • Reset button
  • LACP support
  • Energy Efficient Ethernet
  • Dynamic VLAN Support (GVRP)

Compliant Standards

  • IEEE 802.3, IEEE 802.3u, IEEE 802.3z, IEEE 802.1D, IEEE 802.1Q, IEEE 802.3ab, IEEE 802.1p, IEEE 802.3af, IEEE 802.3x, IEEE 802.3ad (LACP), IEEE 802.1w, IEEE 802.1x, IEEE 802.1s, IEEE 802.3at, IEEE 802.3az


  • Standard Memory: 256 MB
  • Flash Memory: 32 MB

Power Description

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

Environmental Parameters

  • Min Operating Temperature: 32 °F
  • Max Operating Temperature: 104 °F
  • Humidity Range Operating: 10 - 90% (non-condensing)
  • Min Storage Temperature: -4 °F
  • Max Storage Temperature: 158 °F
  • Humidity Range Storage: 10 - 90% (non-condensing)

In general, the Cisco SG500-28P-K9-NA 28 Ports Ethernet Manageable Switch is a robust and versatile solution for modern network requirements. From its PoE capabilities to advanced management features and Layer 3 routing support, this switch offers a comprehensive set of functionalities. Whether it's for a small business looking to expand its network or a large enterprise in need of scalable solutions, the Cisco SG500-28P-K9-NA provides the flexibility and performance required for diverse networking environments. With its stackable design, security features, and commitment to ease of management, this switch stands as a reliable and efficient choice in the ever-evolving landscape of networking technology.

Product Condition:
New Retail Factory Sealed
Warranty provided by ALLHDD.COM:
90 Days

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