United States
Name:
C3KX-NM-1G
- Description:
- CATALYST 3K-X 1G NTWK MODULE OPT PID
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- Brand:
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- GTIN:
- 779184459279
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3 Year Extended Warranty
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Larger orders are dispatched through freight forwarding partners. Delivery takes 7–10 business days, globally.
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3-Year Extended Warranty
Extended protection, enterprise-grade.
All enterprise hardware is backed by a 3-year warranty — triple the industry standard — covering defects under normal use.
Professional repairs & replacements.
If a hardware issue is confirmed, we’ll repair or replace the unit. Replacement parts carry either original or 3-month coverage.
RMA process, simplified.
Once an RMA is approved, return the defective unit within 10 days. We handle the rest — no service gaps.
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What’s covered — and what’s best avoided.
Your warranty covers defects under normal use. For continued protection, avoid accidental damage, unauthorized repairs, third-party parts, or extreme environments.
Know your location’s service type.
In some regions, return-to-factory or remote service may apply. On-site service depends on infrastructure availability.
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Return any product within 14 days of delivery if it doesn’t meet your technical or operational needs.
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Refund or restock, your call.
Changed your mind? Get a refund (restocking fees may apply) or swap with another product.
30-Day Hardware Replacement
Covered for any early faults.
All equipment includes a 30-day replacement warranty. If something goes wrong, we’ll repair or swap it — fast.
Replacements shipped in 10 days or less.
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RMA protocol keeps it smooth.
Just ensure all accessories and original packaging are intact — we’ll take care of the technical validation.
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C3KX-NM-1G Overview
C3KX-NM-1G is an Ethernet network module designed to deliver reliable 1Gbps performance through its RJ-45 connector interface. This module is engineered for seamless compatibility with enterprise routers, switches, and servers, and supports the TCP/IP protocol suite for high-speed connectivity in modern data networks.
Optimized for modular installation in network equipment, the C3KX-NM-1G provides an efficient solution for upgrading server network interfaces and expanding data center capacity. Its design ensures straightforward integration into existing infrastructures while offering features such as auto-negotiation, jumbo frames, and quality of service (QoS) for enhanced network performance and reliability.
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Explore more options from Network Modules And Cards or explore other Cisco products.
C3KX-NM-1G Specifications
| Product Type | Network Module / Network Card |
| Module Type | Ethernet |
| Data Rate | 1Gbps |
| Connector Type | RJ-45 |
| Supported Protocols | TCP/IP |
| Form Factor | Modular |
| Operating Temperature | 0 to 70°C |
| Storage Temperature | -40 to 85°C |
| Input Voltage | 3.3V |
| Compatibility | Routers, Switches, Servers |
| Max Speed | 1Gbps |
| Supported Features | Auto-negotiation, Jumbo Frames, QoS |
| Power Consumption | N/A |
| Interface Ports | Ethernet |
| Expansion Slots | N/A |
| Product Name | C3KX-NM-1G |
| Height | N/A |
| Width | N/A |
| Depth | N/A |
| Weight | N/A |
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
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|---|---|---|---|---|---|
| Compatibility | Cisco | Routers, Switches, Servers | Cisco | Cisco | Cisco, Juniper, Arista, Dell, HP |
| Connector Type | SFP+ | RJ-45 | SFP | RJ-45 | SFP+ |
| Data Rate | 10G | 1Gbps | 1Gbps | 10Gbps | 10Gbps |
| Depth | N/A | N/A | N/A | N/A | N/A |
| Expansion Slots | N/A | N/A | N/A | N/A | N/A |
| Form Factor | Modular | Modular | Modular | Modular | Modular |
| Height | N/A | N/A | N/A | N/A | N/A |
| Input Voltage | 3.3V | 3.3V | 3.3V | 3.3V | 3.3V |
| Interface Ports | SFP+ | Ethernet | SFP | Ethernet | SFP+ |
| Max Speed | 10Gbps | 1Gbps | 1Gbps | 10Gbps | 10Gbps |
| Module Type | SFP+ | Ethernet | Ethernet | Ethernet | SFP+ |
| Operating Temperature | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Power Consumption | 5W | N/A | 3.5W | N/A | 6W |
| Product Name | C3KX-NM-10G= | C3KX-NM-1G | Cisco C3KX-NM-1G= | C3KX-NM-10GT= | C3KX-SM-10G |
| Product Type | Network Module / Network Card | Network Module / Network Card | Network Module | Network Module / Network Card | Network Module / Network Card |
| Storage Temperature | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C |
| 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 |
| Supported Protocols | TCP/IP | TCP/IP | TCP/IP | TCP/IP | TCP/IP, iSCSI |
| Weight | N/A | N/A | N/A | N/A | N/A |
| Width | N/A | N/A | N/A | N/A | N/A |
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Questions & Answers
Q
What is the Cisco Catalyst 3K-X 1G Network Module (C3KX-NM-1G)?
A
The C3KX-NM-1G is a Cisco Catalyst 3000-X Series optional network module that provides eight 1 Gigabit Ethernet SFP uplink ports for high-performance connectivity.
Q
Which Catalyst switches support the C3KX-NM-1G module?
A
The C3KX-NM-1G is compatible with Cisco Catalyst 3650 and 3850 Series switches, enabling flexible uplink expansion on those platforms.
Q
How many ports does the C3KX-NM-1G offer?
A
This module delivers eight independent 1 Gbps SFP ports, allowing connections to fiber or copper SFP transceivers.
Q
What types of SFP transceivers can I use with this module?
A
You can install any Cisco-qualified 1000BASE-SX, 1000BASE-LX/LH, or 1000BASE-T SFP transceiver for multimode, single-mode, or copper connectivity.
Q
Is the C3KX-NM-1G hot-swappable?
A
Yes. The module supports hot-swap capability, allowing you to install or remove it without powering down the switch.
Q
How do I install the C3KX-NM-1G network module?
A
Power off your Catalyst 3650/3850 switch, slide the module into an available expansion slot, secure the captive screws, then power the switch back on.
Q
What throughput can I expect from the C3KX-NM-1G?
A
Each SFP port supports up to 1 Gbps, delivering a total module throughput of 8 Gbps in full-duplex mode.
Q
Does the C3KX-NM-1G support Layer 3 switching features?
A
Layer 3 services depend on the host switch model and software license; the module itself handles physical connectivity without altering switching capabilities.
Q
Can I stack switches with the C3KX-NM-1G installed?
A
Yes. When used in a Catalyst 3850 stack, the module’s ports remain active and managed under the same stack OS instance.
Q
What are the primary use cases for this uplink module?
A
Typical applications include data center uplinks, distribution-layer fiber links, and high-density aggregation for campus networks.
Q
Is a special license required to enable the C3KX-NM-1G ports?
A
No additional license is required; the module’s ports activate automatically once physically installed and the switch is booted.
Q
What is the power consumption of the C3KX-NM-1G?
A
The module draws up to 5 W under maximum load, which is accounted for in the host switch power budget.
Q
What warranty covers the C3KX-NM-1G?
A
Cisco offers a limited lifetime warranty on the module when purchased through authorized channels, with options for extended SMARTnet support.
Q
How do I configure the SFP ports after installation?
A
Access the switch CLI or GUI, navigate to interface range GigabitEthernetx/1–8, and apply your VLAN, trunk, or IP configuration as needed.
Q
Are there any environmental operating requirements?
A
The module operates between 0°C and 40°C (32°F–104°F) with relative humidity from 10% to 85%, non-condensing.
Q
What is the part number for ordering replacement modules?
A
Order using Cisco PID C3KX-NM-1G for the plain module or C3KX-NM-1G= for the spare/returnable packing unit.
Q
Where can I buy the C3KX-NM-1G module?
A
You can purchase from Cisco’s authorized partners, online resellers, or directly through the Cisco Commerce Workspace.
