United States$5,000,000+
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S
Stephen Turner
4
Service module integrated smoothly and delivered stable 10G performance in our Catalyst environment.
C3KX-SM-10G
Catalyst 3K-X 10G Service Module
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Name:
C3KX-SM-10G
- Description:
- Catalyst 3K-X 10G Service Module
- Rating:
Added to cart 28 times recently
- Availability:
In stock - Ready to Ship
- Brand:
- Cisco
- GTIN:
- 354436850464
- Condition:
- Warranty:
- 3
- List Price:
$4,350.09
- Price:
$1,653.0362% off
Quantity:
1
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C3KX-SM-10G Overview
C3KX-SM-10G is a high-performance 10 Gigabit Ethernet SFP+ network module engineered for data centers and enterprise networks. Designed as a compact pluggable interface card, it supports 10Gbps data rates over an SFP+ connector, making it ideal for upgrading server network interfaces and connecting to high-speed networks.
C3KX-SM-10G offers robust compatibility with leading routers, switches, and servers, and supports industry-standard TCP/IP and iSCSI protocols. Its modular form factor enables easy installation into SFP+ slots, while features such as auto-negotiation, jumbo frames, and quality-of-service (QoS) optimization further enhance network performance and reliability across mission-critical applications.
C3KX-SM-10G price is $1,653.03, a 62% saving from the Cisco list price of $4,350.09. C3KX-SM-10G is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for C3KX-SM-10G for additional pricing. Browse the full Cisco Catalyst 3560 Network Module series or explore all Cisco products.
C3KX-SM-10G Specifications
- Product Type
- Network Module / Network Card
- Module Type
- SFP+
- Data Rate
- 10Gbps
- Connector Type
- SFP+
- Supported Protocols
- TCP/IP, iSCSI
- Form Factor
- Modular
- Operating Temperature
- 0 to 70°C
- Storage Temperature
- -40 to 85°C
- Input Voltage
- 3.3V
- Compatibility
- Cisco, Juniper, Arista, Dell, HP
- Max Speed
- 10Gbps
- Supported Features
- Auto-negotiation, Jumbo Frames, QoS
- Power Consumption
- 6W
- Interface Ports
- SFP+
- Expansion Slots
- N/A
- Product Name
- C3KX-SM-10G
- Height
- N/A
- Width
- N/A
- Depth
- N/A
- Weight
- N/A
C3KX-SM-10G Use Case
Data Center Top-of-Rack 10G Server Aggregation
In a high-density e-commerce data center, IT architects install the C3KX-SM-10G Catalyst 3K-X 10G Service Module in Catalyst 3750-X switches to aggregate 48×1G and 10G server links over single-mode fiber. This delivers full line-rate 10 Gbps uplinks for east-west traffic, eliminates bandwidth bottlenecks, reduces latency by 30%, and simplifies cabling, enabling seamless scaling and uninterrupted peak-hour transactions.
Enterprise Campus Backbone 10G Resilient Uplinks
A global corporation deploys C3KX-SM-10G modules in a Catalyst 3560-X stacked core to interconnect five campus buildings via redundant 10 Gbps fiber uplinks. The solution achieves sub-50 ms failover, supports HD video conferencing and mission-critical VoIP, and centralizes security policies. The outcome: 99.99% application availability, consistent user experience across sites, and streamlined network operations.
Virtualized Cloud Edge High-Speed Inter-Switch Links
A cloud service provider integrates the C3KX-SM-10G Catalyst 3K-X 10G Service Module into Catalyst 3750-X leaf switches to trunk 10 Gbps connections to hyper-converged virtualization clusters. This configuration guarantees low-latency VM live-migrations, rapid storage replication, and robust software-defined overlay performance. Results include 40% faster migration windows, SLA-backed throughput, and improved tenant satisfaction.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
 C3KX-SM-10G |  C3KX-SM-10G= |  C3KX-NM-1G |  C3KX-NM-1G= |  C3KX-NM-10G= | |
|---|---|---|---|---|---|
| Product Type | Network Module / Network Card | Network Module | Network Module / Network Card | Network Module | Network Module / Network Card |
| Module Type | SFP+ | SFP+ | Ethernet | Ethernet | SFP+ |
| Data Rate | 10Gbps | 10G | 1Gbps | 1Gbps | 10G |
| Connector Type | SFP+ | SFP+ | RJ-45 | SFP | SFP+ |
| Supported Protocols | TCP/IP, iSCSI | TCP/IP | TCP/IP | 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 | N/A | -40 to 85°C | -40 to 85°C | -40 to 85°C |
| Input Voltage | 3.3V | 3.3V | 3.3V | 3.3V | 3.3V |
| Compatibility | Cisco, Juniper, Arista, Dell, HP | Cisco | Routers, Switches, Servers | Cisco | Cisco |
| Max Speed | 10Gbps | 10Gbps | 1Gbps | 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 | 6W | 3.5W | N/A | 3.5W | 5W |
| Interface Ports | SFP+ | SFP+ | Ethernet | SFP | SFP+ |
| Expansion Slots | N/A | N/A | N/A | N/A | N/A |
| Product Name | C3KX-SM-10G | Cisco C3KX-SM-10G= | C3KX-NM-1G | Cisco C3KX-NM-1G= | C3KX-NM-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
B
Brian Edwards
4
Reliable Cisco module that enhanced uplink capacity without complications.
P
Paul Donovan
5
Worked flawlessly as expected. Installation was quick and hassle free.
G
Greg Walters
5
Consistent performance and excellent compatibility with existing switches.
I
Ian Mitchell
4
Cisco build quality shows immediately. Solid long term reliability.
Questions & Answers
What is the Cisco Catalyst 3K-X 10G Service Module (SKU: C3KX-SM-10G)?
The Cisco Catalyst 3K-X 10G Service Module is a high-performance expansion card that adds eight SFP+ 10-Gigabit Ethernet uplink ports to Catalyst 3560-X and 3750-X series switches, enabling secure, low-latency connectivity.
Which Catalyst switches are compatible with the C3KX-SM-10G module?
The C3KX-SM-10G module is fully compatible with Cisco Catalyst 3560-X and 3750-X switches that feature a dedicated Service Module slot and run IOS Software Release 12.2(55)SE or later.
How many 10G ports does the Cisco Catalyst 3K-X 10G Service Module provide?
The module delivers eight independent SFP+ ports supporting 10-Gigabit Ethernet full-duplex operation for uplinks or inter-switch links.
What type of transceivers does the C3KX-SM-10G support?
The C3KX-SM-10G supports all Cisco-approved 10G SFP+ transceivers, including SR, LR, LRM, and DWDM optics, for multimode and single-mode fiber deployments.
Is the Catalyst 3K-X 10G Service Module hot-swappable?
Yes. The module is hot-swappable, allowing installation and removal without powering down the host switch, ensuring minimal service disruption.
What is the power consumption of the C3KX-SM-10G module?
The module consumes up to 10 watts under maximum load conditions, with typical power draw under standard traffic well below this threshold.
How do I install the Cisco Catalyst C3KX-SM-10G Service Module?
Power off the switch or install hot-swap capable models, slide the module into the Service Module slot until it clicks, secure the captive screws, power on, and verify with the ‘show module’ command.
What performance can I expect from the Catalyst 3K-X 10G Service Module?
You get up to 160 Gbps of bidirectional switching capacity and wire-speed forwarding at 10 Gbps per port with sub-microsecond latency.
Does the C3KX-SM-10G support Layer 2 and Layer 3 features?
Yes. The service module inherits the host switch’s Layer 2 and Layer 3 feature set, including VLAN, QoS, multicast, IPv4/IPv6 routing, and security policies.
Can I use the C3KX-SM-10G in a stack of Catalyst 3K-X switches?
Absolutely. The module works seamlessly within Catalyst 3560-X and 3750-X switch stacks, preserving unified management and stack resilience.
Which Cisco IOS Software version is required for the C3KX-SM-10G?
The minimum requirement is IOS Release 12.2(55)SE or later with Service Module feature license enabled for full functionality.
How do I verify module status and port health after installation?
Use ‘show module’ to confirm module presence and ‘show interfaces status module 1’ (or slot number) to check each port’s operational state and diagnostic status.
What are the typical use cases for the Catalyst 3K-X 10G Service Module?
Ideal for high-density uplinks, data center leaf-spine aggregation, virtualization connectivity, and SAN extension over fiber, delivering scalability and low-latency performance.
What environmental conditions does the C3KX-SM-10G support?
The module operates in 0 °C to 40 °C ambient temperature, 10% to 90% non-condensing humidity, and complies with standard telecom safety and EMI regulations.
What warranty and support options are available for the C3KX-SM-10G?
Cisco offers a Limited Lifetime Hardware Warranty and optional SMARTnet® Service for next-business-day hardware replacement, software updates, and 24/7 technical assistance.