Cisco WS-C3750E-24PD-S 24 Ports Switch
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WS-C3750E-24PD-S Cisco Catalyst 3750-E 24-Ports Ethernet Refurbished

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Part Number#: WS-C3750E-24PD-S
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Short Description:
WS-C3750E-24PD-S Catalyst 3750-E 24-Ports 10/100/1000 RJ-45 Power Over Ethernet (PoE) Manageable Layer 4 Stackable Ethernet Switch with 2x Uplink Ports | Made by Cisco | Refurbished
Product Condition:
Warranty provided by ALLHDD.COM:
90 Days

Product Overview of the Cisco Catalyst 3750-E Ethernet Switch

In the world of networking, Cisco stands tall as a pioneer, consistently introducing groundbreaking solutions to meet the evolving demands of connectivity. The Cisco WS-C3750E-24PD-S, part of the Catalyst series, represents a robust and versatile Ethernet switch designed to empower networks with enhanced performance and manageability.

Understanding Ethernet Switches

An Ethernet switch is a vital networking device that enables multiple devices within a local area network (LAN) to communicate with each other. It operates at the data link layer of the OSI model, efficiently routing data packets based on MAC addresses.

Cisco Catalyst 3750-E Series

The Catalyst 3750-E series from Cisco has earned acclaim for its reliability and versatility in meeting the networking needs of diverse environments. The WS-C3750E-24PD-S is a standout model within this series, boasting a range of features that cater to the demands of modern networking infrastructures.

Key Features of Cisco WS-C3750E-24PD-S

Port Configuration

The WS-C3750E-24PD-S is equipped with 24 ports supporting 10/100/1000 RJ-45 connections. These ports facilitate high-speed data transfer and are essential for connecting various devices within a network, including computers, printers, and servers.

Power Over Ethernet (PoE) Capability

A distinctive feature of this switch is its Power Over Ethernet capability. It can deliver power to connected devices such as IP phones, wireless access points, and surveillance cameras through Ethernet cables, eliminating the need for separate power sources.

Manageability and Layer 4 Capabilities

With its management capabilities, administrators can efficiently control and monitor the network. The switch operates at Layer 4 of the OSI model, offering advanced functionalities for traffic prioritization and enhanced security measures.

Stackable Design

The WS-C3750E-24PD-S is stackable, allowing multiple switches to be interconnected and managed as a single unit. This stacking capability enhances scalability and simplifies network management in larger setups.

Uplink Ports

The switch is equipped with two uplink ports, enabling connections to other network devices or to connect multiple switches together, expanding the network capacity and ensuring redundancy for critical links.

Applications and Use Cases

Enterprise Networks

In enterprise environments, the WS-C3750E-24PD-S finds extensive use due to its robustness and scalability. It caters to the demands of large-scale networks by efficiently handling data traffic and providing reliable connectivity.

Powering Network Devices

The PoE capability of this switch makes it an ideal choice for environments where devices like IP cameras, VoIP phones, and wireless access points require power through the Ethernet connection. It simplifies installation and reduces cable clutter.

Enhanced Network Management

Administrators benefit from the manageability features of the switch, allowing them to monitor, configure, and optimize network performance. The Layer 4 capabilities enable traffic prioritization for critical applications.

Benefits of Cisco WS-C3750E-24PD-S

Simplified Connectivity

With its multitude of ports and PoE capability, this switch simplifies network connectivity by providing power and data transfer over a single Ethernet cable, reducing complexity and costs.

Enhanced Network Performance

The Layer 4 capabilities and advanced management features contribute to optimized network performance, ensuring smooth and efficient data transfer even in high-traffic environments.

Scalability and Flexibility

The stackable design and uplink ports enable easy expansion of the network, offering scalability and flexibility to adapt to the evolving needs of the organization.

Advanced Features and Security

The ME-3400-24TS-D Cisco 3400-24TS 24-Ports Ethernet Access Layer 3 Switch is designed for scalable and secure networking. Some of the features that contribute to this include:

  • Layer 3 capabilities: The switch supports Layer 3 routing protocols such as OSPF and RIP, which allow you to create a more scalable and efficient network by dividing it into smaller, more manageable subnets.
  • VLANs: The switch supports VLANs, which allow you to segment your network into different logical groups. This can help to improve network security by isolating different types of network traffic and can also help to improve network performance by reducing broadcast traffic.
  • Quality of Service (QoS): The switch supports advanced QoS capabilities, which allow you to prioritize network traffic based on different criteria such as IP address, MAC address, and port number. This helps to ensure that critical network traffic is delivered with minimal delay and interruption.
  • Access Control Lists (ACLs): The switch supports ACLs, which allow you to define security policies that control who can access the network and what types of traffic are allowed. This can help to improve network security by blocking unauthorized access and controlling the flow of traffic.
  • Link Aggregation Control Protocol (LACP): LACP allows you to bundle multiple physical ports together to form a single logical link. This can help to increase the bandwidth available to your network and improve network performance, while also providing redundancy in case of a failure.
  • Security features: The switch supports advanced security features such as IEEE 802.1X port-based authentication and RADIUS, TACACS+, and Kerberos which can help to prevent unauthorized access to the network and protect against malicious attacks.

Reliability of Ethernet Switch

The WS-C3750E-24PD-S Cisco Catalyst 3750-E 24-Ports Ethernet Switch is a reliable network device that is widely used in enterprise environments. This switch is part of the Cisco Catalyst 3750-E series, which is known for its energy efficiency and advanced security features.

The 3750-E series also supports StackWise technology, which allows multiple switches to be connected together to function as a single, unified device for increased network scalability and redundancy. This provides a high level of availability for the network.

In addition, the switch supports advanced Quality of Service (QoS) features, which allow for the prioritization of network traffic to ensure that mission-critical applications receive the bandwidth they need.

Main Information about this Cisco WS-C3750E-24PD-S

  • Manufacturer: Cisco
  • Part Number or SKU# WS-C3750E-24PD-S
  • Product Line: Catalyst
  • Product Series: 3750-E
  • Product Type: Layer 4 Switch

Interfaces/Ports of Layer4 Ethernet Switch

  • Total Number of Network Ports: 24
  • Number of Stack Ports: 2
  • Stack Port: Yes
  • Number of Network (RJ-45) Ports: 24
  • Port/Expansion Slot Details: 24 x Gigabit Ethernet Network

Media & Performance for 24 Ports Switch

  • Connectivity Media Category 5 UTP 100/1000Base-T
  • Connectivity Media Category 4 UTP 10Base-T
  • Connectivity Media Category 3 UTP 10Base-T
  • Performance 65.5Mpps Forwarding Rate
  • Performance 64Gbps Stacking Bandwidth
  • Performance 95Mpps Forwarding Rate For 64-byte Packet
  • Performance 128Gbps Switching Fabric
  • Performance 68Gbps Backplane Speed

I/O Expansions of Manageable

  • Number of Total Expansion Slots 2
  • Expansion Slot Type X2

Network & Communication

  • Layer Support: 2
  • Layer Support: 3
  • Layer Support: 4
  • Number of Stacks: 9

Management & Protocols

  • Manageable: Yes
  • Management-
  • Cisco IOS Software CLI
  • Cisco Network Assistant
  • CiscoWorks LAN Management Solution (LMS)
  • IEEE 802.1Q VLAN
  • IEEE 802.1p QoS
  • Telnet Interface
  • SNMP v1, v3, v2c


  • Standard Memory: 256 MB
  • Memory Technology: DRAM
  • Flash Memory: 64 MB
Power Description
  • Input Voltage: 110 V AC
  • Input Voltage: 220 V AC
  • Power Source: AC Adapter
  • Redundant Power Supply: Yes
  • Catalyst 3750-E 24-Port Multi-Layer Ethernet Switch with PoE
  • Documentation
  • AC Power Cord
  • Console Cable
  • StackWise Cable
  • Two 19-inch Mounting Brackets
  • Cable Guide
  • Four Rubber Mounting Feet
  • Power Cord Retainer
  • Four number-12 Phillips Machine Screws
  • Twelve number-8 Phillips Flat-Head Screws
  • One Black Phillips Machine Screw
  • Ground Lug Screw and Ring Terminal

In summary, the Cisco WS-C3750E-24PD-S Catalyst 3750-E Ethernet Switch stands as a testament to Cisco's commitment to innovation in networking solutions. With its array of features including PoE capabilities, manageability, and stackable design, it addresses the needs of modern networks, empowering businesses with reliable, scalable, and efficient connectivity. In a digital landscape where robust networking infrastructure is imperative, this switch proves to be a valuable asset for organizations striving for enhanced performance and seamless connectivity within their 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.

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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.

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(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).

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