Cisco SG500-52P-K9 52 Ports Switch
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Cisco SG500-52P-K9 52-Ports RJ-45 PoE Stackable Manageable Refurbished

Availability: In Stock
Part Number#: SG500-52P-K9
List Price was: $1326.92
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Short Description:
SG500-52P-K9 Small Business SG500-52P Managed Switch 48 Power Over Ethernet (PoE) Ethernet Ports & 2 Combo Gigabit Small Form-Factor Pluggable (SFP) Ports & 2 Small Form-Factor Pluggable (SFP) Ports | Made by Cisco | Refurbished

Interface Types of This Product: Switch 52 Port

Product Condition:
Warranty provided by ALLHDD.COM:
90 Days
We are providing specifications below to explain why you should consider purchasing the Cisco 52 Port Switch Networking, including a general overview, performance specifications, relevant images, media files, and technical information about the SG500-52P-K9 compatibility.

Main Specifications

The Cisco SG500-52P-K9 is a 52-port stackable managed switch that is designed for small and medium-sized businesses. It has 48 Gigabit Ethernet ports and 4 Gigabit Ethernet combo ports (which can be used for either Copper or SFP connectivity). It is a Layer 2 switch, which means that it is capable of performing switching functions at the data link layer (layer 2) of the OSI model. This allows it to forward data between devices on the same network segment, based on the MAC addresses of the devices.

In terms of management, This Model has a number of advanced features that can help you to monitor and manage your network. It supports Quality of Service (QoS) to help prioritize traffic, Virtual Local Area Network (VLAN) support to segment your network, and Energy Efficient Ethernet (EEE) to help reduce power consumption. This Model can also be configured with Link Aggregation Control Protocol (LACP) and Network Access Control List (ACL) features to help improve network performance and security.

Resiliency and High Availability

The Cisco SG500-52P-K9 is a Layer 2 switch with 52 ports. One of its key features is resiliency and high availability, which helps ensure that the network remains up and running even in the event of a failure. This can be achieved through a number of mechanisms, such as redundancy in power supplies and fans, as well as the use of link aggregation to provide multiple paths for data to flow through the network. Additionally, the switch supports advanced features like Spanning Tree Protocol (STP) and Rapid Spanning Tree Protocol (RSTP) to prevent loops and ensure that there is always a clear path for data to travel.


The Cisco SG500-52P-K9 is a Layer 2 switch with 52 ports, it is designed with reliability in mind to provide a robust and stable network. Some of the features that contribute to the reliability of this switch include:

  • Quality of Service (QoS) - Allows you to prioritize different types of traffic, ensuring that critical applications receive the bandwidth they need.
  • Advanced security - Features such as Access Control Lists (ACLs) and Network Admission Control (NAC) help to protect the network from unauthorized access and malware.
  • Link Aggregation Control Protocol (LACP) - Allows you to bundle multiple physical ports together to create a single logical link, providing redundancy and increasing the overall bandwidth.
  • redundancy in power supplies and fans - The switch can be configured with two power supplies and two fans, which helps ensure that the switch remains operational even if one of these components fails.

Additionally, the switch has also been designed to operate in harsh environments, it has a wide operating temperature range, and it is also built to withstand electromagnetic interference (EMI) and radio frequency interference (RFI) which are common in industrial environments.

General Information about this Cisco SG500-52P-K9

  • Manufacturer: Cisco
  • Model Number or SKU# SG500-52P-K9
  • Product Series: 500
  • Product Model: SG500-52P
  • Product Type: Ethernet Switch

Interfaces / Ports for 52 Ports Switch

  • Total Number of Ports 52
  • Token Ring Port No
  • LRE Port No
  • Uplink Port No
  • Bypass No
  • Modular No
  • Management Port Yes
  • USB No
  • Number of PoE (RJ-45) Ports 48
  • Stack Port Yes
  • Number of Network (RJ-45) Ports 48

Performance of Ethernet Switch

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

Power Description for Manageable Switch

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


  • Flow control, layer 2 switching, power over Ethernet (PoE)
  • 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

I/O Expansions

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

Network and Communication

  • Layer Supported 2

Management and Protocols

  • Manageable Yes
  • Management-
  • GUI
  • CLI
  • DHCP
  • VLAN
  • QoS
  • SNMP


  • Standard Memory 256 MB
  • Flash Memory 32 MB

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)

Dimensions & Weight

  • Width: 17.3 inch
  • Depth: 13.8 inch
  • Height: 1.7 inch
  • Weight: 12.37 lbs

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.

Different Types of Switches

Networking switches vary widely depending on the number of devices they can support, network bandwidth/speed, and form factor. Switches for small offices will have anything between 4 and 8 ports and can fit on a desk. For larger office network implementation, switches may have 24 ports, 48 ports, 96 ports, and 128 ports and are rack-mountable between 1U and 4U. Switches come in different types depending on the network speed and tasks they support. These include 40/100 Gbps, 10 Gigabit (up to 10000 Mbps), Gigabit Ethernet (up to 1000 Mbps), Power over Ethernet, and Fast Ethernet (10/100 Mbps).

Unmanaged Switches

The unmanaged switches offer fixed configuration on a plug-and-play basis. It is the most basic switch and there are a few choices in the market. These switches are affordable, but the basic features make them inappropriate for enterprise applications.

Managed Switches

The number of features and level of functionality improves with managed switches, making them ideal for enterprise and business applications. These switches are built with the command-line interface for ease of configuration. Equally, they support SNMP agents that come in handy when troubleshooting network issues.

The security on managed switches is better and will protect different types of traffic. Other features include support for virtual LANs, IP routing, and quality of service settings. Managed switches are more expensive compared to all other types of switches.

Smart Switches

Smart switches refer to switches that possess more features than those of unmanaged switches but do not have the full features of managed switches. Smart switches are more cost-effective than managed switches.

Some of the limitations of the smart switches are a lack of telnet access support, Web GUIs, and a lack of many features for VLANs. They are affordable compared to a fully managed switch and are suitable for a smaller computer network.

Modular Switches

Modular switches allow the addition of expansion modules as the network expands. The expansion modules allow for more networked devices but are application-specific. They may include wireless access points, firewalls, or network analysis tools. The flexibility of a modular networking switch comes at a higher cost.

Here, you can check more available conditions of your desired product SG500-52P-K9 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.


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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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Shipping Options and Estimated Delivery Time

UPS Shipping Options:

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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

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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
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UPS® First Overnight - Saturday
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FedEx Shipping Options:

FedEx Ground®
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FedEx Express Saver®
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Available throughout all 50 states (except Hawaii and Alaska)

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Available throughout all 50 states

FedEx Standard Overnight®
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Available throughout all 50 states (Hawaii is outbound only)

FedEx Priority Overnight®
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Available throughout all 50 states

FedEx First Overnight®
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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:

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