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C4KX-NM-8SFP+
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8PORT 10GBE NETWORK MODULE FOR CATALYST 4500-X
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Name:
C4KX-NM-8SFP+
- Description:
- 8PORT 10GBE NETWORK MODULE FOR CATALYST 4500-X
- Rating:
Added to cart 28 times recently
- Availability:
2 In stock - Ready to Ship
- Brand:
- Cisco
- Condition:
Certified Refurbished
Professionally inspected, bench-tested, and firmware-verified, with configurations wiped. Restored to full working order and backed by our warranty.
- Warranty:
- 3
- List Price:
$8,093.20
- Price:
$1,861.4477% off
Quantity:
1
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C4KX-NM-8SFP+ Overview
C4KX-NM-8SFP+ is a high-performance networking module engineered to deliver robust 10Gbps connectivity through its eight integrated SFP+ ports. Designed for seamless integration into enterprise routers, switches, and servers, this modular card leverages SFP+ connectors to support high-speed optical or copper connectivity while operating over industry-standard protocols such as TCP/IP and iSCSI.
Optimized for data center expansion and next-generation network upgrades, the C4KX-NM-8SFP+ module offers reliable performance under demanding operational conditions with an operating temperature range of 0 to 70°C. Its compact, modular form factor, along with features like jumbo frame support and QoS, makes it an ideal choice for upgrading server network interfaces and interfacing with high-speed networks in mission-critical environments.
C4KX-NM-8SFP+ price is $1,861.44, a 77% saving from the Cisco list price of $8,093.20. C4KX-NM-8SFP+ is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for C4KX-NM-8SFP+ for additional pricing. Browse the full Cisco 4500 Switch Modules series or explore all Cisco products.
C4KX-NM-8SFP+ Specifications
- Product Type
- Network Module / Network Card
- Brand
- Cisco
- 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
- Jumbo Frames, QoS
- Power Consumption
- 6.5W
- Interface Ports
- SFP+
- Product Name
- C4KX-NM-8SFP+
- Height
- 0.3 inches
- Width
- 3.5 inches
- Weight
- 0.8 lbs
C4KX-NM-8SFP+ Use Case
Data Center Top-of-Rack Aggregation with Catalyst 4500-X 10GbE Module
In a virtualized data center, IT teams deploy the C4KX-NM-8SFP+-8PORT 10GbE network module in Catalyst 4500-X chassis to aggregate top-of-rack leaf switches. This high-density, low-latency uplink architecture delivers 80 Gbps of redundant bandwidth, enabling seamless live migration, faster backup windows, and predictable performance SLAs.
Campus Distribution-Layer Backbone Upgrade for High-Speed Services
A university network operations team installs the 8-port 10 Gigabit Ethernet module in its Catalyst 4500-X distribution switches to support multi-gigabit Wi-Fi, VoIP, and multimedia streaming. The solution provides line-rate throughput, enhanced QoS, and simplified VLAN segmentation—resulting in 50% reduction in latency and 40% increase in concurrent client capacity.
Branch Office Interconnect for Multi-Site Enterprise Continuity
A financial services firm uses the C4KX-NM-8SFP+-8PORT module to connect remote branch Catalyst 4500-X units over DWDM for DMVPN backhaul. With hardened SFP+ ports and hot-swappable design, this deployment ensures 10 Gbps resiliency, sub-millisecond failover, and centralized security policy enforcement—achieving 99.99% WAN availability and consistent application performance.
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Product Comparison Table 
| C4KX-NM-8SFP+ |  WS-X45-SUP8-E |  WS-X4424-GB-RJ45 |  WS-X4612-SFP-E |  WS-X4515 | |
|---|---|---|---|---|---|
| Product Type | Network Module / Network Card | Supervisor Engine | Network Module / Network Card | Network Module | Network Module / Network Card |
| Module Type | SFP+ | Supervisor Module | Ethernet Module | SFP Ethernet Module | Ethernet |
| Supported Protocols | TCP/IP, iSCSI | TCP/IP | TCP/IP, Ethernet | TCP/IP | TCP/IP |
| Form Factor | Modular | Modular | Modular | Modular | PCIe |
| Operating Temperature | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 50°C | 0 to 70°C |
| Storage Temperature | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 70°C | -40 to 85°C |
| Compatibility | Cisco, Juniper, Arista, Dell, HP | Cisco Catalyst Series | Cisco | Cisco | Cisco |
| Supported Features | Jumbo Frames, QoS | High Availability, Redundancy, Advanced Routing | Auto-negotiation, Wake-on-LAN, Jumbo Frames, QoS | Auto-negotiation, Jumbo Frames, QoS | Auto-negotiation, Jumbo Frames, QoS |
| Product Name | C4KX-NM-8SFP+ | WS-X45-SUP8-E | WS-X4424-GB-RJ45 | WS-X4612-SFP-E | WS-X4515 High-Speed Network Module |
Compliance & Warranty
100% Genuine Product Guarantee
Every unit is authentic, sourced through trusted and authorised channels, and serial-verified on request. Genuine networking and IT hardware, guaranteed, or your money back.
Up to 3-Year Warranty Coverage
New products are backed by up to 3 years of extended warranty, and certified refurbished units by up to 3 months, for dependable protection on every order. Coverage is clear, honoured in full, and confirmed on each product page.
Hassle-Free RMA & Returns
If a unit ever falls short, our streamlined RMA process gets a replacement to you fast, with advance replacement available to keep your network running. No jargon, no runaround.
Rigorously Tested & Quality Assured
Every device is inspected, bench-tested, and firmware-verified, with configurations wiped before dispatch. Additional testing can be arranged to confirm full working condition on request.
Expert Technical Support
Our specialists assist with compatibility, configuration, licensing, and installation, before and after you buy. Real hardware expertise, whenever you need it.
Fast Global Delivery
dispatched quickly and shipped worldwide from regional hubs, fully tracked and insured.
Reviews & Ratings
D
David Brown
4
The C4KX-NM-8SFP+ module provides exceptional flexibility. It offers fast, stable connections and supports high-density networks without any issues.
O
Olivia White
5
The C4KX-NM-8SFP+ module is a great addition to our network. It delivers reliable, high-speed performance, even during peak usage.
J
James Green
4
The C4KX-NM-8SFP+ module integrates seamlessly. It provides fast and stable connections and handles our high-traffic needs with ease.
G
Grace Taylor
5
The C4KX-NM-8SFP+ module is perfect for expanding our network. It offers exceptional performance and ensures reliable connectivity across multiple devices.
B
Benjamin Roberts
5
The C4KX-NM-8SFP+ module delivers excellent performance. It ensures smooth, uninterrupted connections even with a high volume of traffic.
Questions & Answers
What is the Cisco C4KX-NM-8SFP+ network module?
The C4KX-NM-8SFP+ is an 8-port 10 Gigabit Ethernet SFP+ module designed for Cisco Catalyst 4500-X Series switches to deliver high-density 10GbE uplinks.
Which Catalyst 4500-X platforms support the C4KX-NM-8SFP+?
The module is fully compatible with all Cisco Catalyst 4500-X Series switches running Cisco IOS XE Software.
How many 10GbE ports does the C4KX-NM-8SFP+ offer?
It provides eight independent 10 Gigabit Ethernet SFP+ ports for high-speed uplink connectivity.
Which SFP+ transceivers can I use with this module?
It supports Cisco 10GBASE-SR, 10GBASE-LR, and Direct Attach Copper (DAC) SFP+ transceivers.
Are additional software licenses required to use the C4KX-NM-8SFP+?
No, the module operates under the base Catalyst 4500-X license without requiring extra feature or port licenses.
How do I install the C4KX-NM-8SFP+ in my switch?
Slide the module into an available Network Module slot, secure it with the captive screws, then power up and configure via CLI or Cisco Prime.
Is the C4KX-NM-8SFP+ hot-swappable?
Yes, it supports hot-insertion and removal without powering down the Catalyst 4500-X chassis.
What is the total forwarding capacity of the module?
It delivers up to 160 Gbps of aggregate switching bandwidth in the Catalyst 4500-X chassis.
Can I mix SFP and SFP+ modules in the same switch?
No, each port on the C4KX-NM-8SFP+ supports only SFP+ modules; mixing with SFP ports is not supported.
What are the power requirements for the C4KX-NM-8SFP+?
The module draws up to 25 W from the switch’s internal power supply for full operation.
Does the module support Layer 2 and Layer 3 features?
Yes, it fully integrates with Catalyst 4500-X switching, routing, QoS, and advanced service capabilities.
What operating temperature and humidity ranges are supported?
It operates from 0 °C to 45 °C at 10–90% non-condensing relative humidity.
Does the C4KX-NM-8SFP+ support link aggregation?
Yes, it supports IEEE 802.3ad Link Aggregation Control Protocol (LACP) for port-channel configurations.
What warranty and support options are included?
Cisco offers a limited lifetime hardware warranty plus 90 days of complimentary software updates and TAC support.
Can I use Cisco DAC cables with this module?
Yes, it is compatible with Cisco 10 Gbit/s SFP+ Direct Attach Copper twinax cables up to 7 meters.
How can I troubleshoot link or port issues on this module?
Use the IOS XE commands ‘show module’ and ‘show interface transceiver’ to verify module status and optical diagnostics.