'NETWORK MODULE (NM)'}
Cisco
Cisco C4KX-NM-8SFP+ Refurbished - 8-Port 10G Network Module
MPN: C4KX-NM-8SFP+
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Lifetime
Warranty
ISO 9001
Certified Testing
R2v3
Responsible Refurb
25+
Years
5K+
Customers
ISO
Certified
✓
Tested
Every WhaleyComm unit is professionally tested, reset to factory defaults, and certified by our in-house engineers — the same standard trusted by 5,000+ organisations across 25 years. Not a refurb marketplace. A certified lifecycle partner.
Tested to factory specification. Backed by 25 years of enterprise trust.
Expand your Catalyst 4500-X switch infrastructure with the Cisco C4KX-NM-8SFP+ Refurbished Network Module. Engineered specifically for the Catalyst 4500-X series, this module adds eight SFP+ ports capable of supporting 10 Gigabit Ethernet connectivity, giving network administrators the flexibility to scale bandwidth where it matters most.The C4KX-NM-8SFP+ slots directly into the dedicated network module bay of supported Catalyst 4500-X switches, providing a non-disruptive path to increased port density without replacing the base switch chassis. Each of the eight SFP+ ports supports a wide range of Cisco SFP+ transceivers, allowing you to mix and match fiber and DAC cable options to suit your cabling environment and distance requirements.
This module is well-suited for enterprise campus core, data center aggregation, and high-performance workgroup deployments where 10G uplink capacity and low-latency switching are critical. By choosing a Refurbished unit through WhaleyComm, organizations can achieve the same Cisco quality and performance at a fraction of the cost of new hardware.
All Refurbished units sold by WhaleyComm are inspected and tested to ensure reliable operation. At $120.00, the C4KX-NM-8SFP+ represents exceptional value for IT teams looking to maximize their network investment without compromising on performance or reliability.
Technical Specifications
{'Part Number (MPN)'
'C4KX-NM-8SFP+', 'Brand': 'Cisco', 'Module Type': 'Network Expansion Module', 'Number of Ports': '8', 'Port Type': 'SFP+', 'Port Speed': '10 Gigabit Ethernet (10GbE)', 'Compatible Switch Series': 'Cisco Catalyst 4500-X Series', 'Condition': 'Refurbished', 'Form Factor': 'Network Module (NM)'}
Ideal Use Cases
Enterprise Campus Core Uplinks
Deploy the C4KX-NM-8SFP+ to add eight 10G SFP+ uplinks to your Catalyst 4500-X core switch, supporting high-bandwidth connections to distribution or access layer switches. This helps eliminate bottlenecks across a growing campus network without requiring a full chassis replacement.
Data Center Aggregation Layer Expansion
Use this module to increase 10G port density at the aggregation layer within a data center environment, connecting servers, storage, and top-of-rack switches at wire speed. The SFP+ interface supports both fiber optic and DAC cable options for flexible connectivity.
High-Performance Workgroup Connectivity
Extend 10 Gigabit Ethernet to high-demand workgroups such as video production, engineering, or research teams that require dedicated high-throughput network access. The module integrates seamlessly into an existing Catalyst 4500-X deployment for a low-disruption upgrade path.
What's Included
✔ Cisco C4KX-NM-8SFP+ 8-Port 10G Network Module (Refurbished)
✔ Basic inspection and functionality testing completed
⚠ Note: SFP+ transceivers are NOT included and must be purchased separately. Power cables, rack hardware, and software licenses are not included.
Lifetime Warranty - No Time Limits. No Questions.
Every WhaleyComm unit ships with a Lifetime Warranty. If it fails under normal operating conditions at any point, we replace it. 25 years, 5,000+ customers.
Compatibility Details
Review supported optics, cables, software, management protocols, and environment-specific compatibility guidance.
✓
The Cisco C4KX-NM-8SFP+ is designed for use exclusively with the Cisco Catalyst 4500-X Series switches that include a dedicated network module expansion slot. Supported platforms include the Catalyst 4500-X 16-port and 32-port configurations where a network module bay is present. [Verify specific supported SKUs against Cisco's official compatibility matrix before ordering.]
✓
Software compatibility: Cisco IOS XE is the supported software platform on the Catalyst 4500-X series. [Verify minimum IOS XE software release required for full module support with Cisco documentation.]
✓
Transceivers: The SFP+ ports are compatible with Cisco-qualified SFP+ transceivers and Direct Attach Cables (DACs) supporting 10GbE. Third-party transceiver compatibility should be verified based on your network policy.
Shipping & Returns
Clear fulfilment, tracking, return, warranty, and support information for enterprise hardware orders.
Shipping
Orders ship within 1-2 business days.
Returns
Contact support for DOA or warranty issues.
Frequently Asked Questions
Product-specific answers about compatibility, testing, warranty, fulfilment, and purchase confidence.
The C4KX-NM-8SFP+ is designed for Catalyst 4500-X series switches that include a dedicated network module expansion slot. Not all 4500-X configurations include this slot, so we recommend verifying your specific switch model against Cisco's official compatibility documentation before purchasing.
No, SFP+ transceivers are not included with the C4KX-NM-8SFP+ module and must be purchased separately. The module supports Cisco-qualified SFP+ optics and DAC cables compatible with 10 Gigabit Ethernet.
Refurbished means the module has been previously used and has undergone inspection and functional testing to verify it operates as intended. WhaleyComm offers refurbished Cisco hardware as a cost-effective alternative to new equipment for organizations looking to maximize their IT budgets.
Hot-swap or online insertion capability for this module depends on the specific switch platform and IOS XE software version in use. We recommend consulting Cisco's official hardware installation guide for the Catalyst 4500-X series to confirm supported installation procedures before performing any module changes in a live environment.
Cisco C4KX-NM-8SFP+ Refurbished - 8-Port 10G Network Module
$120.00
Cisco
Cisco C4KX-NM-8SFP+ Refurbished - 8-Port 10G Network Module
MPN: C4KX-NM-8SFP+
$120.00
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