Cisco C3KX-NM-1G= 1000Base-X Module
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C3KX-NM-1G= Cisco 4 Ports Network Module Gigabit Ethernet Bulk

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Short Description:
C3KX-NM-1G= 4 Ports 1 x 1000Base-X Gigabit Ethernet Network Module for Catalyst 3750-X, 3560-X Series Switches | Made by Cisco | New Bulk Pack
Product Condition:
New Bulk Pack
Warranty provided by ALLHDD.COM:
90 Days
Product Overview of the Cisco C3KX-NM-1G= Ethernet Network Module

A Cisco network module is a type of expansion module that can be added to a Cisco networking device, such as a router or switch, to provide additional connectivity or functionality. Cisco offers a wide range of network modules for different applications, including modules for adding additional Ethernet ports, fiber optic ports, WAN connectivity options, and other types of interfaces. Network modules are typically installed in expansion slots on the networking device, and may require additional configuration to integrate with the device and the network. Network modules can be a convenient way to add additional connectivity or functionality to a Cisco networking device without having to replace the entire device.


The Cisco C3KX-NM-1G is hot-swappable, meaning it can be inserted or removed without powering down the connected switch. This feature is essential for minimizing network downtime during installation or maintenance. With hot-swappability, network administrators can add or replace modules while the switch is still operational, reducing disruptions and ensuring network continuity.

Gigabit Ethernet Support

The most prominent feature of this network module is its support for Gigabit Ethernet. Each of the 4 ports is capable of handling 1 Gbps data transfer speeds, which is essential for high-speed data transmission in today's networks. Gigabit Ethernet is a standard for modern networks, enabling the efficient transfer of large data files and ensuring a seamless user experience.

Compatibility with SFP Modules

This network module is compatible with Small Form-Factor Pluggable (SFP) modules. SFP modules are interchangeable and can be easily swapped out to adapt to various networking needs. The Cisco C3KX-NM-1G's compatibility with SFP modules allows organizations to choose the appropriate transceivers and cables based on their specific requirements, whether it's fiber optics or copper connections.

LED Indicators

The Cisco C3KX-NM-1G features LED indicators for each of its ports. These indicators provide essential information about the status of the ports, such as link activity and speed. This visual feedback simplifies network troubleshooting and helps administrators quickly identify any issues with individual connections.

Energy-Efficient Design

In line with Cisco's commitment to sustainability and energy efficiency, the C3KX-NM-1G is designed to optimize power consumption. It is compliant with energy-efficient Ethernet standards, ensuring that it consumes power efficiently while maintaining network performance. This not only reduces operational costs but also contributes to environmental sustainability.

Increased Network Capacity

One of the primary advantages of the Cisco C3KX-NM-1G is the increased network capacity it provides. With four additional Gigabit Ethernet ports, organizations can connect more devices to the network without experiencing congestion or slowdowns in data transfer. This is especially valuable for businesses with expanding network requirements.

Flexibility in Network Design

The module's compatibility with SFP modules adds a layer of flexibility to network design. Organizations can choose the type of transceivers and cables that best suit their network topology, whether it's for short-range connections within a data center or long-distance connections between buildings.


In today's ever-evolving digital landscape, organizations often need to scale their networks quickly to accommodate more devices and data traffic. The Cisco C3KX-NM-1G's scalability allows organizations to adapt to changing network requirements without undergoing costly and disruptive network overhauls.

High-Speed Data Transfer

The demand for high-speed data transfer is on the rise, driven by the increasing use of data-intensive applications, cloud services, and multimedia content. The Gigabit Ethernet support offered by the network module ensures that data can be transferred rapidly and without bottlenecks.


The compatibility with SFP modules adds versatility to the network module, enabling organizations to tailor their network infrastructure to specific needs. Whether it's connecting over short distances or establishing long-haul connections, the Cisco C3KX-NM-1G can accommodate a wide range of scenarios.


Cisco is a well-established and trusted brand in the networking industry, known for the reliability of its products. The Cisco C3KX-NM-1G maintains this reputation by offering a dependable solution for organizations looking to expand their network capabilities.

Compatibility with Catalyst 3750-X and 3560-X Series Switches

The Cisco C3KX-NM-1G= Network Module is specifically designed to work seamlessly with Catalyst 3750-X and 3560-X Series switches. Let's explore this compatibility in more detail.

Catalyst 3750-X Series Switches

The Cisco Catalyst 3750-X Series switches are known for their high performance, scalability, and energy efficiency. The C3KX-NM-1G= Network Module is an excellent addition to these switches, allowing users to expand their network capabilities by adding more Gigabit Ethernet ports. The compatibility ensures that the network module integrates effortlessly with the switch, offering a plug-and-play experience.

Catalyst 3560-X Series Switches

Similar to the Catalyst 3750-X Series, the Cisco Catalyst 3560-X Series switches are also designed for high performance and scalability. The C3KX-NM-1G= Network Module is fully compatible with these switches, making it a valuable asset for organizations using the Catalyst 3560-X Series. The integration of the network module provides additional Gigabit Ethernet ports for accommodating a greater number of networked devices.

Slots 4 Ethernet Module

A 4-slot Ethernet module is a type of expansion module that provides 4 Ethernet ports for connecting devices to a network. These modules are typically used to add additional connectivity to a networking device, such as a router or switch, and may be installed in an expansion slot on the device. The specific features and capabilities of a 4-slot Ethernet module will depend on the specific model and manufacturer. Some Ethernet modules may offer advanced features such as Quality of Service (QoS), VLANs, and port-based security, while others may be more basic and only provide additional connectivity. It is important to consult the documentation for a specific Ethernet module to understand its capabilities and any compatibility issues that may need to be considered.

Benefits of Using the Cisco C3KX-NM-1G= Module

The Cisco C3KX-NM-1G= network module offers several benefits to network administrators and organizations. Let's explore these advantages in detail.

Increased Network Capacity

The addition of four Gigabit Ethernet ports significantly increases the network capacity of your Catalyst 3750-X or 3560-X Series switch. This means your network can handle more devices and data traffic without experiencing congestion, resulting in a smoother and more responsive network.

High-Speed Data Transfer

With each port based on 1000Base-X technology, the C3KX-NM-1G= module ensures high-speed data transfer, making it suitable for applications that demand rapid data transmission. This is crucial for scenarios such as large file transfers, video streaming, and real-time communications.

Flexibility and Scalability

Network administrators can easily scale their network infrastructure by adding the module to their existing switches. This flexibility allows organizations to adapt to changing network requirements without the need for a complete network overhaul.

Reduced Latency

Low latency is vital for applications that require real-time data exchange, such as online gaming, video conferencing, and VoIP. The module's Gigabit Ethernet ports and high-speed technology contribute to reduced latency, ensuring a more responsive network experience.

Hot-Swappable Design

The hot-swappable design of the module simplifies maintenance and upgrades. Network administrators can replace or install the module without the need to power down the switch, reducing downtime and minimizing disruptions to network operations.

Improved Network Reliability

By providing additional Gigabit Ethernet ports, the module enhances network reliability. Redundant connections can be established, ensuring that network services remain available even if one port or link experiences issues.

Enterprise Networks

In enterprise environments, where a large number of devices are connected to the network, the C3KX-NM-1G= module can be used to expand network capacity and ensure fast data transmission. It is particularly useful in data centers and corporate offices where high-speed connectivity is essential.

General Information about this Cisco C3KX-NM-1G=
  • Manufacturer: Cisco
  • Part Number or SKU# C3KX-NM-1G=
  • Product Type: Network Module
Technical Information of Network Module
  • Application/Usage: Data Networking
Interfaces/Ports of 4 Ports Module
  • Total Number of Ports: 4
  • Interfaces/Ports: 1 x 1000Base-X
  • Interfaces/Ports Details: 1 x 1000Base-X Network
Media & Performance
  • Ethernet Technology: Gigabit Ethernet
  • Network Technology: 1000Base-X
  • Connectivity Technology: Wired
  • Data Link Protocol: Gigabit Ethernet
  • Status Indicators: Link/activity
Expansion / Connectivity
  • Expansion Slots: 4 (total) / 4 (free) x SFP
  • Compatible Slots: 1 x expansion slot
Environmental Parameters
  • Operating temperature: -5 to 45°C up to 5000ft elevation, -5 to 40°C up to 10000ft elevation
  • Storage temperature: -40 to 70°C
  • Relative humidity operating, noncondensing: 5 to 95% non-condensing
  • Relative humidity non-operating, noncondensing: 5 to 95% non-condensing
  • Operating altitude: 10,000 ft. (3000m)
  • Storage altitude: 15,000 ft. (4750
Compatibility Information
  • Cisco Catalyst 3560X-24P/L/S and 3560X-48P/L/S: These are 24- and 48-port switches with PoE (Power over Ethernet) capability, which allows them to power connected devices such as IP phones and wireless access points.
  • Cisco Catalyst 3560X-24T/L/S and 3560X-48T/L/S: These are 24- and 48-port switches with RJ-45 connectors for connecting devices via Ethernet cables.
  • Cisco Catalyst 3750X-12S/E/S: This is a 12-port switch with SFP (Small Form-Factor Pluggable) uplinks, which can be used to connect to other network devices or to fiber optic cabling.
  • Cisco Catalyst 3750X-24P/L/S and 3750X-48P/L/S: These are 24- and 48-port switches with PoE capability.
  • Cisco Catalyst 3750X-24S/E/S and 3750X-48S/E/S: These are 24- and 48-port switches with SFP+ uplinks, which provide higher bandwidth than SFP uplinks.
  • Cisco Catalyst 3750X-24T/L/S and 3750X-48T/L/S: These are 24- and 48-port switches with RJ-45 connectors.
  • Cisco Catalyst 3750X-48PF/L/S and 3750X-48P/L/S: These are 48-port switches with PoE capability, but the "PF" version provides higher power output for devices that require more power.

In summary, the Cisco C3KX-NM-1G= is a valuable network module that enhances the capabilities of Cisco Catalyst 3750-X and 3560-X series switches. With its four Gigabit Ethernet ports, hot-swappable design, and energy-efficient features, it provides numerous benefits to network administrators and businesses.

By increasing network capacity, offering flexibility, and improving scalability, this module supports a wide range of use cases, from small businesses to data centers and educational institutions. However, it's essential to consider compatibility and network requirements before making a purchase.

For organizations seeking to expand and optimize their network infrastructure, the Cisco C3KX-NM-1G= network module is a reliable and cost-effective solution that can contribute to improved network performance and reliability.

Product Condition:
New Bulk Pack
Warranty provided by ALLHDD.COM:
90 Days

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