Can I install the C3KX-NM-10G= while the switch is powered on?

Yes. The C3KX-NM-10G= is hot-swappable, allowing installation or removal without interrupting switch operation.

What is the maximum aggregate throughput of the C3KX-NM-10G=?

With four 10G ports, the module supports up to 40 Gbps of total aggregated bandwidth.

Does the C3KX-NM-10G= require additional licensing?

No separate license is needed. The four 10G ports are enabled by default on licensed Catalyst 3650 and 3850 platforms.

What power budget should I plan for the 10G module?

The C3KX-NM-10G= draws approximately 15 W of power; ensure your switch PSU can accommodate this extra load.

How do I install the C3KX-NM-10G= into my switch?

Power down the switch (optional), remove the blank panel, slide in the module until it clicks, secure screws, and power on.

How do I configure the new 10G ports on the switch?

Use CLI commands: interface range TenGigabitEthernet x/y–z, set speed, duplex, VLAN or routing parameters, then no shutdown.

Can the C3KX-NM-10G= be used for switch stacking?

Yes. You can aggregate two 10G ports per switch to form up to 80 Gbps of stack bandwidth on compatible Catalyst platforms.

What environmental conditions does the C3KX-NM-10G= support?

Operating temperature: 0 °C to 40 °C; humidity: 10%–95% non-condensing; storage: –40 °C to 70 °C.

Is the C3KX-NM-10G= covered under Cisco’s standard warranty?

Yes. The module carries a one-year limited hardware warranty and is eligible for Cisco's SMARTnet support contracts.

How does the C3KX-NM-10G= improve network performance?

By adding 10Gbps uplinks and stacking ports, it reduces bottlenecks, increases throughput, and enhances redundancy and scalability.

What is the SKU and ordering code for the Catalyst 3K-X 10G Network Module?

The official Cisco ordering SKU is C3KX-NM-10G=, which covers the four-port 10G SFP+ expansion module.

Where can I purchase the C3KX-NM-10G=?

You can buy the module through Cisco’s authorized resellers, online distributors, or directly via the Cisco Commerce portal.

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Rating: 4.2 (5 reviews)

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C3KX-NM-10G= Overview

C3KX-NM-10G= is a high-performance SFP+ network module engineered to deliver reliable 10Gbps connectivity for modern enterprise and data center networks. Designed with an SFP+ connector, this Ethernet module supports the TCP/IP protocol suite and is fully compatible with Cisco routers and switches, ensuring seamless integration into existing network infrastructures.

This modular network card offers a straightforward installation process and is optimized for use cases such as expanding data center capacity, upgrading server network interfaces, and connecting to high-speed networks. It enables critical networking features like auto-negotiation, jumbo frames, and QoS, making it an ideal solution for demanding networking environments.

C3KX-NM-10G= price is $674.76, a 77% saving from the Cisco list price of $2,933.79. C3KX-NM-10G= is in stock and available for next-day dispatch. (terms applied)

Request bulk order quote for C3KX-NM-10G= for additional pricing. Browse the full Cisco Catalyst 3560 Network Module series or explore all Cisco products.

C3KX-NM-10G= Specifications

Product Type: Network Module / Network Card
Module Type: SFP+
Data Rate: 10G
Connector Type: SFP+
Supported Protocols: TCP/IP
Form Factor: Modular
Operating Temperature: 0 to 70°C
Storage Temperature: -40 to 85°C
Input Voltage: 3.3V
Compatibility: Cisco
Max Speed: 10Gbps
Supported Features: Auto-negotiation / Jumbo Frames / QoS
Power Consumption: 5W
Interface Ports: SFP+
Expansion Slots: N/A
Product Name: C3KX-NM-10G=
Height: N/A
Width: N/A
Depth: N/A
Weight: N/A

C3KX-NM-10G= Use Case

High-Density Data Center Server Farm Aggregation

In a mid-size enterprise data center running virtualization and containerized applications, the C3KX-NM-10G module aggregates twenty 1G server uplinks into dual 10G trunks on the Catalyst 3K-X switch. This consolidation reduces cable sprawl, cuts port count by 80%, and delivers predictable low-latency performance for VM migrations and storage replication. Outcome: scalable 10Gbps aggregation, streamlined operations, and accelerated time-to-market for new services.

Campus Distribution Uplink for Unified Communications

A large university deploying 802.11ax wireless and VoIP services installs Catalyst 3K-X switches in each building with the C3KX-NM-10G module to establish redundant 10G uplinks to the core backbone. This high-throughput backbone supports bandwidth-intensive e-learning platforms, HD video conferencing, and seamless campus roaming. Outcome: sub-millisecond voice latency, future-proof Wi-Fi capacity, and guaranteed campus-wide service availability.

Multi-Tenant Virtualization Backbone in Service Provider Networks

A managed services provider leverages C3KX-NM-10G modules on Catalyst 3K-X switches to deliver VXLAN-based multi-tenant connectivity across its point-of-presence (PoP) network. Dual 10G uplinks separate overlay and underlay traffic, enabling isolation of up to 100 tenant networks with end-to-end QoS and encryption. Outcome: robust 10GbE transport, simplified network segmentation, and SLA-driven performance for high-value customers.

Quality Certifications

To get the detailed certification, please go to the Compliance Center.

Product Comparison Table

	C3KX-NM-10G=	C3KX-NM-10GT=	C3KX-SM-10G	C3KX-NM-1G=	C3KX-SM-10G=
Product Type	Network Module / Network Card	Network Module / Network Card	Network Module / Network Card	Network Module	Network Module
Module Type	SFP+	Ethernet	SFP+	Ethernet	SFP+
Data Rate	10G	10Gbps	10Gbps	1Gbps	10G
Connector Type	SFP+	RJ-45	SFP+	SFP	SFP+
Supported Protocols	TCP/IP	TCP/IP	TCP/IP, iSCSI	TCP/IP	TCP/IP
Form Factor	Modular	Modular	Modular	Modular	Modular
Operating Temperature	0 to 70°C	0 to 70°C	0 to 70°C	0 to 70°C	0 to 70°C
Storage Temperature	-40 to 85°C	-40 to 85°C	-40 to 85°C	-40 to 85°C	N/A
Input Voltage	3.3V	3.3V	3.3V	3.3V	3.3V
Compatibility	Cisco	Cisco	Cisco, Juniper, Arista, Dell, HP	Cisco	Cisco
Max Speed	10Gbps	10Gbps	10Gbps	1Gbps	10Gbps
Supported Features	Auto-negotiation / Jumbo Frames / QoS	Auto-negotiation, Jumbo Frames, QoS	Auto-negotiation, Jumbo Frames, QoS	Auto-negotiation, Jumbo Frames, QoS	Auto-negotiation, Jumbo Frames, QoS
Power Consumption	5W	N/A	6W	3.5W	3.5W
Interface Ports	SFP+	Ethernet	SFP+	SFP	SFP+
Expansion Slots	N/A	N/A	N/A	N/A	N/A
Product Name	C3KX-NM-10G=	C3KX-NM-10GT=	C3KX-SM-10G	Cisco C3KX-NM-1G=	Cisco C3KX-SM-10G=
Height	N/A	N/A	N/A	N/A	N/A
Width	N/A	N/A	N/A	N/A	N/A
Depth	N/A	N/A	N/A	N/A	N/A
Weight	N/A	N/A	N/A	N/A	N/A

Reviews & Ratings

Stephen Turner

Added 10G uplinks seamlessly and improved switch capacity immediately.

Brian Edwards

Installation was simple and performance has been rock solid.

Paul Donovan

Cisco module delivered reliable high speed connectivity.

Greg Walters

Perfect upgrade for Catalyst 3K-X switching environments.

Ian Mitchell

Consistent performance in production with no issues.

Questions & Answers

What is the Cisco Catalyst 3K-X 10G Network Module (C3KX-NM-10G=)?

The C3KX-NM-10G= is a Catalyst 3000-X series expansion module that adds four native 10-Gigabit Ethernet ports to supported Cisco switches, boosting uplink and stacking performance.

Which Cisco switches support the C3KX-NM-10G=?

This 10G module is compatible with Cisco Catalyst 3650 and 3850 series switches, enabling high-speed uplinks and redundant stacking links.

How many 10G ports are provided by the C3KX-NM-10G=?

The module delivers four fixed SFP+ ports, each supporting up to 10 Gbps for fiber or DAC connectivity.

What transceivers and DAC cables does the C3KX-NM-10G= support?

The module accepts Cisco SFP-10G-SX/LX/ZR transceivers and compatible 10G SFP+ direct-attach copper cables (DAC).

Related Searches Cisco Catalyst 3560 Network Module

C3KX-NM-10GT=C3KX-SM-10G C3KX-NM-1G=C3KX-NM-10G C3KX-SM-10G=C3KX-NM-1G CAT-3KX-10G-NM-SR C9500-24X-A

C3KX-NM-10G= Overview

C3KX-NM-10G= price is $674.76, a 77% saving from the Cisco list price of $2,933.79. C3KX-NM-10G= is in stock and available for next-day dispatch. (terms applied)

C3KX-NM-10G= Specifications

Product Type

Network Module / Network Card

Module Type

SFP+

Data Rate

10G

Connector Type

SFP+

Supported Protocols

TCP/IP

Form Factor

Modular

Operating Temperature

0 to 70°C

Storage Temperature

-40 to 85°C

Input Voltage

3.3V

Compatibility

Cisco

Max Speed

10Gbps

Supported Features

Auto-negotiation / Jumbo Frames / QoS

Power Consumption

Interface Ports

SFP+

Expansion Slots

N/A

Product Name

C3KX-NM-10G=

Height

N/A

Width

N/A

Depth

N/A

Weight

N/A

C3KX-NM-10G= Use Case

High-Density Data Center Server Farm Aggregation

Campus Distribution Uplink for Unified Communications

Multi-Tenant Virtualization Backbone in Service Provider Networks

Product Comparison Table

	C3KX-NM-10G=	C3KX-NM-10GT=	C3KX-SM-10G	C3KX-NM-1G=	C3KX-SM-10G=
Product Type	Network Module / Network Card	Network Module / Network Card	Network Module / Network Card	Network Module	Network Module
Module Type	SFP+	Ethernet	SFP+	Ethernet	SFP+
Data Rate	10G	10Gbps	10Gbps	1Gbps	10G
Connector Type	SFP+	RJ-45	SFP+	SFP	SFP+
Supported Protocols	TCP/IP	TCP/IP	TCP/IP, iSCSI	TCP/IP	TCP/IP
Form Factor	Modular	Modular	Modular	Modular	Modular
Operating Temperature	0 to 70°C	0 to 70°C	0 to 70°C	0 to 70°C	0 to 70°C
Storage Temperature	-40 to 85°C	-40 to 85°C	-40 to 85°C	-40 to 85°C	N/A
Input Voltage	3.3V	3.3V	3.3V	3.3V	3.3V
Compatibility	Cisco	Cisco	Cisco, Juniper, Arista, Dell, HP	Cisco	Cisco
Max Speed	10Gbps	10Gbps	10Gbps	1Gbps	10Gbps
Supported Features	Auto-negotiation / Jumbo Frames / QoS	Auto-negotiation, Jumbo Frames, QoS	Auto-negotiation, Jumbo Frames, QoS	Auto-negotiation, Jumbo Frames, QoS	Auto-negotiation, Jumbo Frames, QoS
Power Consumption	5W	N/A	6W	3.5W	3.5W
Interface Ports	SFP+	Ethernet	SFP+	SFP	SFP+
Expansion Slots	N/A	N/A	N/A	N/A	N/A
Product Name	C3KX-NM-10G=	C3KX-NM-10GT=	C3KX-SM-10G	Cisco C3KX-NM-1G=	Cisco C3KX-SM-10G=
Height	N/A	N/A	N/A	N/A	N/A
Width	N/A	N/A	N/A	N/A	N/A
Depth	N/A	N/A	N/A	N/A	N/A
Weight	N/A	N/A	N/A	N/A	N/A

Questions & Answers

What is the Cisco Catalyst 3K-X 10G Network Module (C3KX-NM-10G=)?

The C3KX-NM-10G= is a Catalyst 3000-X series expansion module that adds four native 10-Gigabit Ethernet ports to supported Cisco switches, boosting uplink and stacking performance.

Which Cisco switches support the C3KX-NM-10G=?

This 10G module is compatible with Cisco Catalyst 3650 and 3850 series switches, enabling high-speed uplinks and redundant stacking links.

How many 10G ports are provided by the C3KX-NM-10G=?

The module delivers four fixed SFP+ ports, each supporting up to 10 Gbps for fiber or DAC connectivity.

What transceivers and DAC cables does the C3KX-NM-10G= support?

The module accepts Cisco SFP-10G-SX/LX/ZR transceivers and compatible 10G SFP+ direct-attach copper cables (DAC).