Cisco WS-C3750E-48PD-EF 48 Port Networking Switch
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Cisco WS-C3750E-48PD-EF Catalyst 3750E Switch 48 Ports Refurbished

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Part Number#: WS-C3750E-48PD-EF
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Short Description:
WS-C3750E-48PD-EF Catalyst 3750E 48 Ports 10/100/1000 RJ-45 Power Over Ethernet (PoE) Multi-Layer Stackable Ethernet Switch with 2x Uplink | Made by Cisco | Refurbished
Product Condition:
Warranty provided by ALLHDD.COM:
90 Days

Product Details of the Cisco Multi-Layer Ethernet Switch

Introduction The Cisco WS-C3750E-48PD-EF Catalyst 3750E is an advanced Ethernet switch designed to meet the demands of modern networking environments. With 48 ports supporting 10/100/1000 RJ-45 connections and Power over Ethernet (PoE) capabilities, along with multi-layer stackable features and uplink options, this switch offers a robust solution for businesses and organizations seeking reliable and scalable networking infrastructure.

In this comprehensive guide, we will delve into the features, benefits, technical specifications, and practical applications of the Cisco WS-C3750E-48PD-EF Catalyst 3750E Ethernet Switch. Whether you're a network administrator, IT professional, or simply interested in understanding enterprise-grade networking equipment, this guide aims to provide valuable insights and knowledge.

Overview of the WS-C3750E-48PD-EF Cisco Catalyst Switch

The WS-C3750E-48PD-EF is a Cisco Catalyst switch that belongs to the 3750E series. It is a high-performance, enterprise-class switch designed for use in enterprise LAN access and distribution environments. It offers 48 10/100/1000 PoE+ ports and 2 10 Gigabit Ethernet (10GE) uplink ports, as well as a power supply of 1150W. The switch supports Cisco's EnergyWise technology, which helps lower energy consumption, and also includes advanced security features and Quality of Service (QoS) capabilities. Additionally, the switch is stackable, allowing for up to 9 switches to be connected for easy management and expansion. Overall, the WS-C3750E-48PD-EF is a versatile, high-performance switch suitable for a wide range of enterprise networking needs.

Key features of the Cisco 3750E Series Switch

High performance

  • The 3750E series offers high-speed switching and routing capabilities, making it suitable for use in demanding network environments.

PoE+ support

  • Many models in the 3750E series, including the WS-C3750E-48PD-EF, support Power over Ethernet Plus (PoE+) which allows the switch to provide power to devices such as IP phones, wireless access points, and cameras.

Stackable design

  • The 3750E series supports a stackable design, allowing up to 9 switches to be connected for easy management and expansion.

Advanced security

  • The 3750E series includes advanced security features such as access control lists (ACLs) and Network Admission Control (NAC) to help protect the network from unauthorized access and threats.

Quality of Service (QoS)

  • The 3750E series includes QoS capabilities that allow administrators to prioritize different types of traffic, such as voice and video, for optimal performance.

Energy efficiency

  • The 3750E series supports Cisco EnergyWise technology which helps lower energy consumption and reduce power costs.

Layer 3 Routing

  • The 3750E series offers the capability of Layer 3 routing, providing the ability to route traffic between VLANs, which is ideal for large enterprise networks.

Application Visibility and Control

  • The 3750E series offers Application Visibility and Control (AVC) which allows for the monitoring and controlling of individual applications and their associated traffic.

10/100/1000 PoE+ ports and their capabilities

The WS-C3750E-48PD-EF has 48 10/100/1000 PoE+ ports, which are ports that are capable of providing both data connectivity and power to devices connected to them. The PoE+ feature allows the switch to supply power to devices such as IP phones, wireless access points, and cameras, eliminating the need for separate power supplies or outlets for these devices.

The PoE+ ports on the WS-C3750E-48PD-EF can supply up to 30 watts of power per port, which is enough to power most PoE-enabled devices. This can help to simplify network deployments by reducing the need for additional power sources and cabling. It also reduces the total cost of ownership of the network, as devices can be deployed in areas where power outlets are not readily available.

The PoE+ ports also provide standard IEEE 802.3af and IEEE 802.3at power which allows the switch to provide power to devices that support either standard. Additionally, PoE+ ports also support Cisco's proprietary Cisco Discovery Protocol (CDP) and Link Layer Discovery Protocol (LLDP) which allows the switch to automatically detect and configure PoE-enabled devices connected to the switch.

Benefits of Cisco Catalyst 3750E Switch


With its stackable design and support for up to 9 switches in a stack, the Cisco Catalyst 3750E switch provides scalability to accommodate the growing needs of businesses and organizations.


Built to Cisco's stringent quality standards, the switch offers high reliability and availability, minimizing downtime and ensuring uninterrupted operation of critical network services.


The switch's support for a wide range of interfaces and advanced features makes it highly flexible, allowing organizations to tailor their network infrastructure to meet specific requirements and use cases.

Simplified Management

The switch's stackable design and compatibility with Cisco IOS software enable easy configuration and management, reducing the complexity of network administration tasks.

Enhanced Security

With advanced security features such as ACLs, port security, and encryption, the switch helps organizations protect their network infrastructure and data from unauthorized access and threats.

Improved Performance

The switch's high-performance architecture and support for Gigabit Ethernet speeds ensure smooth operation of data-intensive applications and services, enhancing productivity and user experience.

Practical Applications

Enterprise Networks

The switch is ideal for medium to large enterprise networks, providing reliable connectivity, scalability, and security for mission-critical applications and services.

Education Institutions

Educational institutions such as schools and universities can benefit from the switch's scalability and performance, supporting campus-wide networks, classroom connectivity, and administrative services.

Healthcare Facilities

Healthcare facilities can leverage the switch's PoE capabilities to power IP phones, wireless access points, and medical devices, enabling seamless communication and collaboration while maintaining compliance with regulatory requirements.

Government Agencies

Government agencies can rely on the switch's advanced security features and high availability to support secure communications, data transfer, and information sharing across departments and agencies.

Hospitality Industry

Hotels, resorts, and hospitality establishments can use the switch to provide reliable Wi-Fi connectivity, IP-based services, and guest amenities while ensuring network security and performance.

Surveillance Systems

The switch's PoE capabilities make it well-suited for powering IP cameras and surveillance systems, enabling organizations to deploy scalable and cost-effective security solutions for monitoring and surveillance purposes.

General Information about the Cisco WS-C3750E-48PD-EF Switch

  • Manufacturer: Cisco
  • Part Number or SKU# WS-C3750E-48PD-EF
  • Product Line: Catalyst
  • Product Series: 3750-E
  • Product Type: Layer 3 Switch

Interfaces/Ports of Layer 3 Switch

  • Total Number of Network Ports: 48
  • Number of Stack Ports: 2
  • Stack Port: Yes
  • Number of Network (RJ-45) Ports: 48

Media & Performance

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

I/O Expansions

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

Network & Communication

  • Layer Supported: 4


  • Additional Information: IP Services software feature set (IPS)

Finally, The Cisco WS-C3750E-48PD-EF Catalyst 3750E Ethernet Switch is a powerful and versatile networking solution designed to meet the demands of modern enterprise environments. With its robust features, scalability, reliability, and advanced security capabilities, the switch offers organizations the flexibility and performance they need to build and manage a resilient network infrastructure.

Whether deployed in enterprise networks, educational institutions, healthcare facilities, government agencies, or hospitality establishments, the Cisco Catalyst 3750E switch delivers high performance, scalability, and security to support a wide range of applications and services. As businesses and organizations continue to rely on digital technologies for their operations, investing in a reliable and scalable networking infrastructure such as the Cisco Catalyst 3750E switch is essential to ensure seamless connectivity, productivity, and growth.

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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