Cisco WS-C3850-12XS-E 12 Port Networking Switch
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Cisco WS-C3850-12XS-E 12 Ports Rack Mountable Switch Refurbished

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Part Number#: WS-C3850-12XS-E
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Short Description:
WS-C3850-12XS-E Catalyst 3850 12 Ports 12 X 10 Gigabit Ethernet Expansion Slot Power over Ethernet Plus (PoE+) RJ-45 Ports Twisted Pair 1U Rack-Mountable Layer 3 Switch | Made by Cisco | Refurbished
Product Condition:
Warranty provided by ALLHDD.COM:
90 Days

Product Overview for the Cisco WS-C3850-12XS-E 12 Ports Switch

The WS-C3850-12XS-E is a member of the Cisco Catalyst Series switches. It is a managed Layer 3 switch that has 12 SFP+ ports, which are a type of port that supports 10 Gigabit Ethernet connections. The E at the end of the model number indicates that it is an "enhanced" version of the switch, which means it has additional features and capabilities compared to other models in the series. As a managed switch, the Model can be configured and managed using a network management protocol such as SNMP (Simple Network Management Protocol). It can also be configured using a command-line interface (CLI) through a console port or over a network using Telnet or SSH.

12 Ports for Enhanced Connectivity

The Cisco WS-C3850-12XS-E is equipped with 12 ports, providing a substantial foundation for connecting various devices within a network. These ports serve as the conduits for data transmission, enabling seamless communication between computers, servers, and other networked devices.

10 Gigabit Ethernet Expansion Slot

The inclusion of a 10 Gigabit Ethernet Expansion Slot elevates the switch's capabilities, allowing for high-speed data transfer and reducing latency. This feature is particularly beneficial for organizations with bandwidth-intensive applications or data-intensive tasks, ensuring a smooth and efficient network experience.

Power over Ethernet Plus (PoE+)

One of the standout features of the WS-C3850-12XS-E is Power over Ethernet Plus (PoE+), a technology that enables the switch to deliver both data and electrical power over Ethernet cables. This capability eliminates the need for separate power sources for connected devices, simplifying installation and reducing overall infrastructure costs.

RJ-45 Ports for Versatility

The switch incorporates RJ-45 ports, a standard interface for connecting devices using twisted pair cables. This versatility in connectivity options ensures compatibility with a wide range of networked devices, offering flexibility to accommodate diverse networking requirements.

1U Rack-Mountable Design

The WS-C3850-12XS-E is designed with efficiency in mind, featuring a 1U rack-mountable form factor. This compact design optimizes space utilization within data centers or network closets, allowing for a streamlined and organized networking infrastructure.

Advanced Capabilities

Layer 3 Switching for Intelligent Routing

At the core of the WS-C3850-12XS-E is its Layer 3 switching capability, providing intelligent routing and enhanced performance. Layer 3 switches operate at the network layer of the OSI model, allowing for more efficient data routing based on IP addresses. This results in faster and more targeted data transmission, optimizing network resource utilization.

Enhanced Security Features

Security is paramount in modern networking environments, and the WS-C3850-12XS-E doesn't disappoint. With advanced security features, including Access Control Lists (ACLs), the switch helps organizations safeguard their networks against unauthorized access and potential cyber threats. This proactive approach to security is essential in today's digital landscape.

Scalability for Growing Networks

Businesses evolve, and so do their networking needs. The WS-C3850-12XS-E is designed with scalability in mind, offering the flexibility to expand as the network grows. Whether accommodating new devices or adapting to increased data traffic, this switch provides a scalable solution that can grow with the evolving demands of the organization.

Performance and Reliability

High-Speed Data Transfer

The 10 Gigabit Ethernet Expansion Slot, coupled with the 12 ports, ensures high-speed data transfer within the network. This is particularly crucial for data-intensive applications, video conferencing, and other bandwidth-demanding tasks. The switch's performance capabilities contribute to a responsive and reliable network infrastructure.

Redundancy for Uninterrupted Operations

Downtime is a significant concern for any organization. The WS-C3850-12XS-E addresses this by incorporating redundancy features that minimize the risk of disruptions. Redundant power supplies and other failover mechanisms ensure continuous operation, even in the face of hardware failures, contributing to a more resilient network.

Quality of Service (QoS) Optimization

Quality of Service is prioritized in the WS-C3850-12XS-E, allowing for the efficient management of network resources. By prioritizing critical data traffic, organizations can ensure that bandwidth is allocated appropriately, enhancing the overall user experience and preventing congestion during peak usage periods.

High Availability Features

The Cisco WS-C3850-12XS-E Catalyst 3850 12 Ports Rack-Mountable Switch has several high availability features to ensure that it operates with maximum uptime and minimal disruption. Here are some of its high-availability features:

  • Redundant Power Supply: The switch has two modular power supplies that provide redundancy, ensuring that if one fails, the other can take over and continue powering the switch.
  • Stackable: The switch can be stacked with other switches to form a single logical switch, which can improve resiliency and simplify network management.
  • Dual Redundant Modular Fans: The switch has two modular fans that provide redundancy in case one fails, ensuring that the switch stays cool and continues to operate.
  • Rapid Spanning Tree Protocol (RSTP): RSTP is a protocol that detects network topology changes and reconfigures the network quickly to minimize downtime and maintain network connectivity.
  • Virtual Router Redundancy Protocol (VRRP): VRRP is a protocol that provides redundancy for IP addresses by allowing multiple routers to share the same IP address. If one router fails, another can take over and continue handling traffic.
  • Link Aggregation Control Protocol (LACP): LACP is a protocol that allows multiple physical links between switches to be combined into a single logical link, providing redundancy and increased bandwidth.
  • Cisco StackWise-480 Technology: This technology allows up to nine switches to be stacked together, forming a single logical switch with a high-bandwidth interconnect, providing a resilient, scalable, and easy-to-manage solution.

Network Topology and Deployment Options

The Cisco WS-C3850-12XS-E Catalyst 3850 switch is a high-performance, enterprise-level switch designed to meet the demands of modern networks. It offers a range of network topology and deployment options to suit different network requirements.

Network Topology Options

  • Star Topology: This is the most common topology used in LAN networks, where each device is connected directly to the switch.
  • Mesh Topology: In this topology, each device is connected to multiple switches, forming a redundant network that can handle network failures.
  • Ring Topology: In this topology, devices are connected in a ring, with each device connected to two adjacent devices. This topology is rarely used in LAN networks.

Deployment Options

  • Standalone: The Cisco WS-C3850-12XS-E switch can be deployed as a standalone switch, connected directly to the network.
  • Stacked: Up to nine Cisco WS-C3850-12XS-E switches can be stacked together to form a single logical switch. This allows for easier management and increased redundancy.
  • Clustered: Multiple switches can be clustered together to form a single virtual switch, providing increased scalability and redundancy.
  • VSS (Virtual Switching System): Two Cisco WS-C3850-12XS-E switches can be configured in a VSS configuration, providing increased scalability and redundancy.

General Information for the Cisco WS-C3850-12XS-E Layer 3 Switch

  • Manufacturer: Cisco
  • Model Number or SKU# WS-C3850-12XS-E
  • Product Line: Catalyst
  • Product Series: 3850
  • Product Type: Layer 3 Switch

Technical Information for 12 Ports Switch

  • Number of PoE+ (RJ-45) Ports: 12
  • Port/Expansion Slot Details: 12 x 10 Gigabit Ethernet Expansion Slot
  • Number of Total Expansion Slots: 12
  • Expansion Slot Type: SFP+
  • Number of SFP+ Slots: 12
  • Token Ring Port: No
  • LRE Port: No
  • Bypass: No
  • Management Port: Yes
  • USB: Yes


  • Media Type Supported: Optical Fiber
  • Twisted Pair Cable Standard: Category 5e
  • Ethernet Technology: 10 Gigabit Ethernet
  • Network Technology: 10GBase-X

Network & Communication

  • Layer Supported: 3
  • Manageable: Yes


  • Standard Memory: 4 GB
  • Memory Technology: DRAM
  • Flash Memory: 2 GB
  • MTBF (Mean Time Between Failures): 269,450 Hours
Power Description
  • PoE (RJ-45) Port: Yes
  • Input Voltage: 110 V AC, 220 V AC
  • Power Source: Power Supply
  • Redundant Power Supply Supported: Yes

In short, the Cisco WS-C3850-12XS-E Catalyst 3850 is a feature-rich and high-performance Layer 3 switch designed to meet the networking demands of modern businesses. With its 12 ports supporting 10 Gigabit Ethernet, PoE+ capability, and robust security features, it is well-suited for a variety of applications, from data centers to enterprise networks. The switch's scalability, interoperability with the Cisco ecosystem, and advanced management options further enhance its value, making it a reliable choice for organizations seeking a versatile and efficient networking solution.

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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