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C4KX-NM-8SFP+
8PORT 10GBE NETWORK MODULE FOR CATALYST 4500-X
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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.
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.
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.
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.
To get the detailed certification, please go to the Compliance Center.
 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 |
| Data Rate | 10Gbps | N/A | 1Gbps | 1Gbps | 10G |
| Connector Type | SFP+ | N/A | RJ-45 | SFP | SFP+ |
| 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 |
| Input Voltage | 3.3V | 3.3V / 5V | 3.3V | N/A | 3.3V |
| Compatibility | Cisco, Juniper, Arista, Dell, HP | Cisco Catalyst Series | Cisco | Cisco | Cisco |
| Max Speed | 10Gbps | N/A | 1Gbps | 1Gbps | 10Gbps |
| 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 |
| Power Consumption | 6.5W | N/A | N/A | N/A | 15W |
| Interface Ports | SFP+ | N/A | Ethernet | SFP | Ethernet |
| Expansion Slots | N/A | N/A | N/A | N/A | N/A |
| Product Name | C4KX-NM-8SFP+ | WS-X45-SUP8-E | WS-X4424-GB-RJ45 | WS-X4612-SFP-E | WS-X4515 High-Speed Network Module |
| Height | 0.3 inches | N/A | N/A | N/A | N/A |
| Width | 3.5 inches | N/A | N/A | N/A | N/A |
| Depth | N/A | N/A | N/A | N/A | N/A |
| Weight | 0.8 lbs | N/A | N/A | N/A | N/A |
The C4KX-NM-8SFP+ module provides exceptional flexibility. It offers fast, stable connections and supports high-density networks without any issues.
The C4KX-NM-8SFP+ module is a great addition to our network. It delivers reliable, high-speed performance, even during peak usage.
The C4KX-NM-8SFP+ module integrates seamlessly. It provides fast and stable connections and handles our high-traffic needs with ease.
The C4KX-NM-8SFP+ module is perfect for expanding our network. It offers exceptional performance and ensures reliable connectivity across multiple devices.
The C4KX-NM-8SFP+ module delivers excellent performance. It ensures smooth, uninterrupted connections even with a high volume of traffic.
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.
The module is fully compatible with all Cisco Catalyst 4500-X Series switches running Cisco IOS XE Software.
It provides eight independent 10 Gigabit Ethernet SFP+ ports for high-speed uplink connectivity.
It supports Cisco 10GBASE-SR, 10GBASE-LR, and Direct Attach Copper (DAC) SFP+ transceivers.