Cisco WS-C3750G-12S-E Catalyst 12 Ports Switch
If you need a large quantity of WS-C3750G-12S-E product - call us through our toll-free number at (800) 675 5044 or request a quote at live chat and our sales manager will contact you shortly.
Looking for assistance? Connect with one of our experts
+1 (800) 675 5044 (Toll-Free)
FREE Shipping.

Cisco WS-C3750G-12S-E Catalyst 12 Ports Managed Switch Refurbished

Availability: In Stock
Part Number#: WS-C3750G-12S-E
List Price was: $846.15
Your Price:
You Save: $626.15 (74% off)



Short Description:
WS-C3750G-12S-E Catalyst 3750G 12 Ports Gigabit Small Form-Factor Pluggable (SFP) Manageable Layer 3 Rack Mountable 1U and Stackable Switch | Made by Cisco | Refurbished
Product Condition:
Warranty provided by ALLHDD.COM:
90 Days
More Information on the Switch

In the realm of networking, the Cisco WS-C3750G-12S-E Catalyst 3750G Switch stands as a robust and versatile solution. This comprehensive guide aims to provide a detailed understanding of its features, specifications, and applications, catering to both beginners and experienced IT professionals.

Overview of Cisco WS-C3750G-12S-E Catalyst Switch

The Cisco WS-C3750G-12S-E is part of the Catalyst 3750G series, known for its high-performance capabilities and advanced features. Let's delve into its key attributes.

Gigabit Speeds with 12 Ports
  • One of the standout features of this switch is its 12 Gigabit Ethernet ports, offering high-speed connectivity for data-intensive applications and ensuring efficient data transfer within a network.
Small Form-Factor Pluggable (SFP) Compatibility
  • The inclusion of Small Form-Factor plugable (SFP) ports enhances flexibility by supporting various SFP transceivers. This allows for different types of connections, including fiber optic links, extending the range and adaptability of the switch.
Manageable Layer 3 Capabilities
  • The Cisco WS-C3750G-12S-E is equipped with Layer 3 capabilities, enabling intelligent routing decisions and enhancing network efficiency. This feature is crucial for managing and optimizing traffic within complex networks.
Rack Mountable 1U Design
  • The 1U (1 Rack Unit) form factor makes the switch suitable for rack-mounted installations, optimizing space in data centers or network cabinets. The compact design ensures efficient use of physical space while providing powerful networking capabilities.
Stackable Design for Scalability
  • The stackable design allows multiple switches to be interconnected, forming a unified and scalable network. This stacking capability simplifies management and facilitates the expansion of network infrastructure as needed.
Technical Specifications

Understanding the technical specifications of the Cisco WS-C3750G-12S-E is essential for making informed decisions about its deployment. Let's explore the detailed specifications of this Catalyst switch.

Performance Metrics
  • The switch boasts impressive performance metrics, with a forwarding rate of [X] gigabits per second and a switching capacity of [Y] gigabits per second. These metrics highlight its ability to handle high volumes of data traffic seamlessly.
Memory and Processor
  • Equipped with [X] megabytes of RAM and [Y] megabytes of flash memory, the switch can efficiently manage configurations, store operational data, and support future software updates. The [Processor Model] processor ensures quick data processing and optimal performance.
Power over Ethernet (PoE) Support
  • For devices that require Power over Ethernet (PoE), the Cisco WS-C3750G-12S-E offers PoE support on selected ports. This feature simplifies the deployment of network devices such as IP cameras, VoIP phones, and wireless access points.
Security Features
  • Security is a top priority in networking, and this switch includes advanced security features such as [Feature 1], [Feature 2], and [Feature 3]. These features help protect the network from unauthorized access, ensuring data integrity and confidentiality.
Quality of Service (QoS) Enhancements
  • The switch incorporates QoS mechanisms to prioritize and manage network traffic effectively. With support for [QoS Feature 1], [QoS Feature 2], and [QoS Feature 3], it ensures a seamless and reliable user experience for critical applications.
Use Cases

Understanding how the Cisco WS-C3750G-12S-E can be applied in real-world scenarios is crucial for assessing its suitability for different environments. Let's explore various applications and use cases for this Catalyst switch.

Data Center Deployments
  • In data center environments, where high-performance networking is imperative, the Cisco WS-C3750G-12S-E shines. Its Gigabit Ethernet ports, Layer 3 capabilities, and stackable design make it an ideal choice for data-intensive applications and seamless connectivity.
Enterprise Networks
  • Large enterprises with diverse networking needs can benefit from the switch's scalability and advanced features. The ability to stack multiple switches provides a scalable solution for expanding network infrastructure as the organization grows.
Campus Networks
  • For educational institutions and large campus networks, the switch's compact design, high-speed connectivity, and Layer 3 routing capabilities contribute to efficient data transfer and reliable network performance.
Future Trends and Compatibility
  • Networking technologies are constantly evolving, and it's essential to consider the compatibility of the Cisco WS-C3750G-12S-E with future trends. Let's explore its readiness for emerging technologies and standards.
Compatibility with Next-Generation Technologies
  • The switch's architecture and design should be forward-looking, ensuring compatibility with emerging technologies such as [Technology 1] and [Technology 2]. This future-proofing approach safeguards investments and extends the switch's lifespan.
Software-Defined Networking (SDN) Integration
  • As Software-Defined Networking (SDN) gains prominence, the switch's compatibility with SDN frameworks becomes crucial. SDN integration allows for centralized control and programmability, enhancing network management and flexibility.
IPv6 Support
  • With the exhaustion of IPv4 addresses, IPv6 adoption is on the rise. The switch's support for IPv6 ensures compatibility with the latest internet protocol, enabling seamless communication in networks transitioning to IPv6.
High Availability and Redundancy Options

The WS-C3750G-12S-E Cisco Catalyst 12 Ports Managed Switch offers various High Availability (HA) and redundancy options to ensure that the network remains up and running in the event of a failure. These options include:

  • StackWise technology: This technology allows multiple switches to be stacked together and managed as a single logical switch. This provides redundancy in case of a switch failure and increases the available ports.
  • Hot-Standby Router Protocol (HSRP): This protocol allows for the configuration of a virtual IP address shared between multiple routers. This virtual IP address is used as the default gateway for hosts on the network, and if the active router fails, the standby router takes over, providing redundancy.
  • Link Aggregation Control Protocol (LACP): This is a standard protocol used to bundle multiple physical links together to form a logical link, providing redundancy and increasing the available bandwidth.
  • Rapid Spanning Tree Protocol (RSTP): This protocol ensures that only one active path exists between two network devices, providing redundancy and preventing loops in the network.
  • Virtual Router Redundancy Protocol (VRRP): This protocol allows for the configuration of a virtual router that is shared between multiple physical routers. The virtual router acts as the default gateway for hosts on the network, and if the active router fails, the standby router takes over, providing redundancy.

All those features allow network administrators to increase the availability and redundancy of the network, ensuring that the network remains up and running in the event of a failure, improving the network's resilience, and reducing the risk of network downtime.

Network Scalability and Flexibility

The WS-C3750G-12S-E Cisco Catalyst 12 Ports Managed Switch offers various network scalability and flexibility options to allow network administrators to easily expand and adapt the network as needed. These options include:

  • StackWise technology: This technology allows multiple switches to be stacked together and managed as a single logical switch. This increases the number of available ports and allows for easy expansion of the network as more devices are added.
  • StackPower: This technology allows power to be shared among multiple switches in a stack, making it easy to add new switches to the network without the need for additional power supplies.
  • VLANs: Virtual LANs (VLANs) can be used to segment the network into multiple logical networks, allowing for greater flexibility and security. This allows for the creation of separate networks for different departments or teams, reducing the risk of network congestion and increasing the security of the network.
  • Quality of Service (QoS): This feature allows for the prioritization of different types of network traffic, ensuring that critical applications and services receive the necessary bandwidth. This allows for better scalability and flexibility as the network grows and changes.
  • FlexStack Plus: This technology allows for the stacking of switches with different numbers of ports, providing flexibility for network expansion and allowing for a mix of different switch models in the stack.

All those features allow network administrators to easily expand and adapt the network as needed, ensuring that the network can grow and change with the organization's needs, improving network scalability and flexibility.

Main Information about the Cisco Switch
  • Manufacturer: Cisco Systems, Inc
  • Part Number or SKU# WS-C3750G-12S-E
  • Brand Name: Cisco
  • Product Line: Catalyst
  • Product Series: 3750
  • Product Model: 3750G-12S
  • Product Type: Ethernet Switch
  • Port/Expansion Slot Details: 12 x Gigabit Ethernet Expansion Slot
I/O Expansions
  • Number of Total Expansion Slots: 12
  • Expansion Slot Type: SFP
  • Number of SFP Slots: 12
Network & Communication
  • Layer Supported: 3
  • Standard Memory: 128 MB
  • Flash Memory: 16 MB
  • MTBF: 215000 Hour
Power Description
  • Input Voltage: 110 V AC
  • Input Voltage: 220 V AC
  • Power Source: Power Supply
  • Redundant Power Supply: Yes

In summary, the Cisco WS-C3750G-12S-E Catalyst 3750G Switch stands as a versatile and powerful networking solution, catering to the diverse needs of modern IT environments. From its Gigabit speeds and Layer 3 capabilities to its compact design and stackable architecture, this switch offers a comprehensive set of features for various applications.

As organizations continue to prioritize high-performance networking, the Cisco WS-C3750G-12S-E remains a reliable choice. Its scalability, advanced security features, and compatibility with emerging technologies position it as a valuable asset in building robust and future-ready networks. Whether deployed in data centers, enterprise networks, campus environments, or telecommunication networks, this Catalyst switch continues to deliver optimal performance and adaptability.

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.


Please choose your location for calculate shipping cost.


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.
Final Sale items are non-returnable/refundable in any situation. Any question? please ask our team before the shipment.

Important notes:

We can provide additional warranty service/support for any product you purchase from us if you need additional warranty coverage before finalizing the order from ALLHDD.Com. You need to ask in live chat/help or call us for more information.

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

Free Technical support on purchased items, our expert consultancy over the phone, by email, by live chat, or by remote login.


Shipping Options and Estimated Delivery Time

UPS Shipping Options:

FREE UPS® Ground (Free shipping to all orders for 48 states!)
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

UPS Next Day Air® Standard Overnight
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
Estimated delivery time: Overnight 8:00 AM, Early morning, overnight delivery for your time-critical shipments.

UPS® First Overnight - Saturday
Estimated delivery time: Overnight 8:30 AM – Saturday

FedEx Shipping Options:

FedEx Ground®
Estimated delivery time: (4–7 business days in the contiguous 48 states)
*For residential delivery via FedEx Ground use FedEx Home Delivery®
Estimated delivery time: 4−7 business days, based on the distance to the destination.

FedEx Express Saver®
Estimated delivery time: 3 business days (by 4:30 PM to U.S. businesses; by 8:00 PM to residences)
Available throughout all 50 states (except Hawaii and Alaska)

FedEx 2Day®
Estimated delivery time: 2 business days (by 4:30 PM to U.S. businesses; by 8:00 PM to residences)
Available throughout all 50 states

FedEx Standard Overnight®
Estimated delivery time: Next-business-day (by 4:30 PM to U.S. businesses and by 8:00 PM to residences)
Available throughout all 50 states (Hawaii is outbound only)

FedEx Priority Overnight®
Estimated delivery time: Next-business-day (by 10:30 PM to U.S. businesses, noon to most residences)
Available throughout all 50 states

FedEx First Overnight®
Estimated delivery time: Next-business-day (by 8:30 or 9 AM to most areas)
Available throughout all 50 states

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:

  • The processing of orders with Ground Shipping can take up to 24-48 hours. But we try to process all orders the same day.
  • We are not responsible for weather problems that may affect the delivery of goods by carriers. We cannot guarantee the exact delivery time, regardless of the carriers' claims.
  • If you have any specific delivery time requirements, please contact our customer support and someone from our customer service team will be able to help you.
  • You can estimate the shipping cost from the products detail page, also available on the checkout page
  • The shipping cost depends on box dimensions, weight, and zip/postal code
  • To get a FedEx® delivery service you need to mention it on the checkout page notebox.
  • For urgent shipments, please contact our customer service.
  • Shipping cut off 4:00 PM (Monday-Friday) and available blind drop shipment.