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C4KX-NM-8SFP+
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- 8PORT 10GBE NETWORK MODULE FOR CATALYST 4500-X
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C4KX-NM-8SFP+
8PORT 10GBE NETWORK MODULE FOR CATALYST 4500-X
$8,093.20
$1,861.44
46 in Global Warehouse
$1,861.44
77% off
TRUSTED, TRIED, PROVEN
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.
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C4KX-NM-8SFP+ 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 | Jumbo Frames, QoS |
| Power Consumption | 6.5W |
| Interface Ports | SFP+ |
| Expansion Slots | N/A |
| Product Name | C4KX-NM-8SFP+ |
| Height | 0.3 inches |
| Width | 3.5 inches |
| Depth | N/A |
| 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.
Quality Certifications
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Product Comparison Table
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| Compatibility | Cisco | Cisco Catalyst Series | Cisco, Juniper, Arista, Dell, HP | Cisco | Cisco |
| Connector Type | SFP | N/A | SFP+ | RJ-45 | SFP+ |
| Data Rate | 1Gbps | N/A | 10Gbps | 1Gbps | 10G |
| 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 | PCIe |
| Height | N/A | N/A | 0.3 inches | N/A | N/A |
| Input Voltage | N/A | 3.3V / 5V | 3.3V | 3.3V | 3.3V |
| Interface Ports | SFP | N/A | SFP+ | Ethernet | Ethernet |
| Max Speed | 1Gbps | N/A | 10Gbps | 1Gbps | 10Gbps |
| Module Type | SFP Ethernet Module | Supervisor Module | SFP+ | Ethernet Module | Ethernet |
| Operating Temperature | 0 to 50°C | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Power Consumption | N/A | N/A | 6.5W | N/A | 15W |
| Product Name | WS-X4612-SFP-E | WS-X45-SUP8-E | C4KX-NM-8SFP+ | WS-X4424-GB-RJ45 | WS-X4515 High-Speed Network Module |
| Product Type | Network Module | Supervisor Engine | Network Module / Network Card | Network Module / Network Card | Network Module / Network Card |
| Storage Temperature | -40 to 70°C | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C |
| Supported Features | Auto-negotiation, Jumbo Frames, QoS | High Availability, Redundancy, Advanced Routing | Jumbo Frames, QoS | Auto-negotiation, Wake-on-LAN, Jumbo Frames, QoS | Auto-negotiation, Jumbo Frames, QoS |
| Supported Protocols | TCP/IP | TCP/IP | TCP/IP, iSCSI | TCP/IP, Ethernet | TCP/IP |
| Weight | N/A | N/A | 0.8 lbs | N/A | N/A |
| Width | N/A | N/A | 3.5 inches | N/A | N/A |
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Questions & Answers
Q
What is the Cisco C4KX-NM-8SFP+ network module?
A
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.
Q
Which Catalyst 4500-X platforms support the C4KX-NM-8SFP+?
A
The module is fully compatible with all Cisco Catalyst 4500-X Series switches running Cisco IOS XE Software.
Q
How many 10GbE ports does the C4KX-NM-8SFP+ offer?
A
It provides eight independent 10 Gigabit Ethernet SFP+ ports for high-speed uplink connectivity.
Q
Which SFP+ transceivers can I use with this module?
A
It supports Cisco 10GBASE-SR, 10GBASE-LR, and Direct Attach Copper (DAC) SFP+ transceivers.
Q
Are additional software licenses required to use the C4KX-NM-8SFP+?
A
No, the module operates under the base Catalyst 4500-X license without requiring extra feature or port licenses.
Q
How do I install the C4KX-NM-8SFP+ in my switch?
A
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.
Q
Is the C4KX-NM-8SFP+ hot-swappable?
A
Yes, it supports hot-insertion and removal without powering down the Catalyst 4500-X chassis.
Q
What is the total forwarding capacity of the module?
A
It delivers up to 160 Gbps of aggregate switching bandwidth in the Catalyst 4500-X chassis.
Q
Can I mix SFP and SFP+ modules in the same switch?
A
No, each port on the C4KX-NM-8SFP+ supports only SFP+ modules; mixing with SFP ports is not supported.
Q
What are the power requirements for the C4KX-NM-8SFP+?
A
The module draws up to 25 W from the switch’s internal power supply for full operation.
Q
Does the module support Layer 2 and Layer 3 features?
A
Yes, it fully integrates with Catalyst 4500-X switching, routing, QoS, and advanced service capabilities.
Q
What operating temperature and humidity ranges are supported?
A
It operates from 0 °C to 45 °C at 10–90% non-condensing relative humidity.
Q
Does the C4KX-NM-8SFP+ support link aggregation?
A
Yes, it supports IEEE 802.3ad Link Aggregation Control Protocol (LACP) for port-channel configurations.
Q
What warranty and support options are included?
A
Cisco offers a limited lifetime hardware warranty plus 90 days of complimentary software updates and TAC support.
Q
Can I use Cisco DAC cables with this module?
A
Yes, it is compatible with Cisco 10 Gbit/s SFP+ Direct Attach Copper twinax cables up to 7 meters.
Q
How can I troubleshoot link or port issues on this module?
A
Use the IOS XE commands ‘show module’ and ‘show interface transceiver’ to verify module status and optical diagnostics.
