Cisco C3850-NM-2-10G Expansion Module
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Cisco C3850-NM-2-10G 2-Ports 10GbE LAN Catalyst 3850-24 Refurbished

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Part Number#: C3850-NM-2-10G
List Price was: $861.54
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Short Description:
C3850-NM-2-10G 2-Ports 10 Gigabit Ethernet (GbE) Local Area Network (LAN) Catalyst 3850-24 and 3850-48 Expansion Module | Made by Cisco | Refurbished

Interface Types of This Product: Network Module 2 Port

Product Condition:
Warranty provided by ALLHDD.COM:
90 Days
We are providing specifications below to explain why you should consider purchasing the Cisco 2 Port Network Module Networking, including a general overview, performance specifications, relevant images, media files, and technical information about the C3850-NM-2-10G compatibility.

Enhancing Network Security

The C3850-NM-2-10G is an expansion module designed to enhance the network security of Cisco Catalyst 3850-24 switches. This module provides two additional 10 Gigabit Ethernet (10GbE) ports to the switch, which can be used for high-speed connectivity to servers, storage devices, or other network switches.

Here are some of the key features and benefits of the C3850-NM-2-10G:

  • High-speed connectivity: The module provides two 10GbE ports, which can deliver high-speed connectivity for demanding applications such as video streaming, data backup, and virtualization.
  • Increased bandwidth: By adding two 10GbE ports to the switch, the module increases the overall bandwidth of the network, which can help to improve performance and reduce latency.
  • Network security: The C3850-NM-2-10G module supports several security features that can help to protect the network from unauthorized access, data breaches, and other security threats. For example, it supports IEEE 802.1X port-based authentication, which can prevent unauthorized devices from accessing the network.
  • Simplified management: The module can be managed using Cisco's Prime Infrastructure management software, which provides a centralized interface for configuring and monitoring network devices.
  • Easy installation: The module is designed for easy installation and can be installed without disrupting the operation of the switch.

Cost Analysis of Implementing with Expansion Module

The Cisco C3850-NM-2-10G expansion module is an add-on module for the Catalyst 3850-24 switch that provides two additional 10 Gigabit Ethernet (GbE) ports. The cost analysis of implementing this module involves considering the upfront cost of purchasing the module, as well as ongoing operational costs.

Upfront Costs: The Cisco C3850-NM-2-10G expansion module has a list price of around $2,000, but actual prices may vary depending on the vendor, purchase volume, and other factors. The upfront cost also includes the cost of installation, configuration, and any necessary cabling and power infrastructure upgrades.

Operational Costs: The operational costs associated with the Cisco C3850-NM-2-10G expansion module depend on the specific deployment scenario and network requirements. These costs can include:

  • Power Consumption: The module will consume additional power, which may increase energy costs.
  • Maintenance and Support: The module may require maintenance or replacement if it fails, which could lead to additional costs for parts and labor.
  • Training: If your IT staff is not already familiar with configuring and managing the Cisco Catalyst 3850 switch with the expansion module, they may need to undergo training or certification, which can incur additional costs.
  • Software Licensing: Depending on the specific features and capabilities required, additional software licensing may be needed for the switch and the expansion module.
  • Operational Efficiency: The expansion module may improve network performance and efficiency, which can lead to cost savings in other areas of the organization.

Security Features of 2 Ports Module

The C3850-NM-2-10G is an expansion module for the Cisco Catalyst 3850-24 switch, which adds two 10 Gigabit Ethernet (10GbE) ports to the switch. This module also includes several security features to enhance the network security of the switch. In this answer, we'll discuss the security features of the C3850-NM-2-10G module.

  • Port Security: The C3850-NM-2-10G module supports port security, which allows you to limit the number of devices that can access a port on the switch. You can set up MAC address-based port security on the module, which will only allow devices with approved MAC addresses to connect to the port. Additionally, you can set up static MAC addresses for each port, which ensures that only specific devices are allowed to access the port.
  • VLAN Access Control Lists (ACLs): VLAN ACLs allow you to control traffic entering or leaving a VLAN. The C3850-NM-2-10G module supports VLAN ACLs, which allow you to filter traffic based on source and destination IP addresses, MAC addresses, protocols, and other parameters. This feature helps to secure your network by preventing unauthorized access to the VLAN.
  • Private VLANs: Private VLANs (PVLANs) allow you to divide a VLAN into sub-VLANs, which are isolated from each other. The C3850-NM-2-10G module supports PVLANs, which provide an additional layer of security by isolating devices from each other within the same VLAN. This feature is especially useful in large networks where multiple devices are connected to the same VLAN.
  • Dynamic ARP Inspection: Dynamic ARP Inspection (DAI) is a security feature that prevents ARP spoofing attacks. The C3850-NM-2-10G module supports DAI, which validates ARP packets before forwarding them. This feature ensures that ARP packets are coming from a trusted source and that the source MAC address matches the IP address in the packet.
  • Access Control Lists (ACLs): Access Control Lists (ACLs) allow you to control traffic entering or leaving a network interface. The C3850-NM-2-10G module supports ACLs, which allow you to filter traffic based on source and destination IP addresses, protocols, and other parameters. This feature helps to secure your network by preventing unauthorized access to your network.
  • Identity-Based Networking: Identity-Based Networking (IBN) is a security feature that allows you to control access to your network based on the user's identity. The C3850-NM-2-10G module supports IBN, which allows you to set policies based on the user's identity, group membership, and other parameters. This feature helps to secure your network by ensuring that only authorized users have access to the network.
  • Secure Shell (SSH): Secure Shell (SSH) is a protocol that provides secure remote access to network devices. The C3850-NM-2-10G module supports SSH, which allows you to securely access the switch remotely. This feature ensures that your remote access is secure and prevents unauthorized access to your network.

General Information about this Cisco C3850-NM-2-10G

  • Manufacturer: Cisco
  • Model Number or SKU# C3850-NM-2-10G
  • Product Type: Network Module

Technical Information of Dual Port Module

  • Number of Ports 2
  • Application/Usage: Optical Network
  • Application/Usage: Data Networking
  • Expansion Slots 2 x SFP (mini-GBIC)/SFP+
  • Expansion Slots 2 x SFP (mini-GBIC)


  • Cisco Catalyst 3850 Series Switches

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.

Network Module

The network interface module integrates state-of-the-art designs with different hardware and software components for a completely flexible subsystem. The modules can work on several interfaces, and they are compatible with a wide range of networking devices. They provide services for the processing of events and access from related devices.

The network module can also run on central servers, depending on the network availability and resilience. Users can also distribute most of the module options to different sites for extra system resilience.

They help connect and transfer data between networking devices and the central server or controller. An ethernet cable and IP/TCP are employed for effective connection.

They deliver a great level of flexibility of deployment in data centers, branch offices, service providers, and more. Their integration into different switch and router families is seamless while offering quality and cost-effective solutions.

The network module options include tools that help manage and provide network nodes. The tools also assist in designing policies for applications. Users can configure the application policies in various sequences as needed. Software development kits and API are also available to enable flexibility of extension to custom environments.

A wide range of network interface modules is available for use. These include the management modules, which helps to control and monitor network communications. This range of products also provides users with more comprehensive remote monitoring and efficient configuration functions for real-time management.

The voice WAN Card is a flexible solution that supports multiple voices and data applications. This facilitates the movement of channeled voice and data for simplified deployment, sparing, and management.

The fabric module delivers value and offers support for advanced network connection. It enables enhanced network services without compromising performance. There are durable options that deliver outstanding bandwidth as well as improved performance and advanced services. These options are available in a wide range of port options ranging from 1 port to 20 ports and more.

Another reliable network module is the firewall. The firewall helps users filter the traffic that enters and leaves their private networks. Thus, there's adequate protection from viruses, hackers, and other threats. Firewalls are easy to use, often coming with only two options to allow or disallow network access. Therefore, users can be sure of the security of sensitive operational data.

Other network accessories ensure fast and effective transmission of data over the network. Some options transmit up to 40 Gigabit of data per second. Many options also work with a 10-100-1000 Mbps network for versatile business and personal use. These are robust, durable, and efficient network interface module options that users can only get at AllHDD.

Network Module Key Features

  • Controls the controllers at a single network site or across multiple network sites
  • Retains a subset of databases that are relevant to the network site being controlled
  • Communicates with the central server to discover and correct networking issues
  • Air-cooled with no moving parts for improved reliability and durability during application

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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?

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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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