Cisco C4KX-NM-8SFP+ 8-Ports Ethernet Expansion Module
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C4KX-NM-8SFP+ Cisco 8-Ports Expansion Module SFP+ Gigabit Refurbished

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Short Description:
C4KX-NM-8SFP+ Catalyst 4500-X 8-Ports 10 Gigabytes Per Second (GBPS) Small Form-Factor Pluggable Plus (SFP+) Network Uplink Expansion Module | Made by Cisco | Refurbished
Product Condition:
Warranty provided by ALLHDD.COM:
90 Days
A Glance at the C4KX-NM-8SFP+ Cisco 8-Ports Expansion Module

In the ever-evolving landscape of networking technologies, staying ahead of the curve is essential for businesses seeking optimal performance and efficiency. One such groundbreaking solution is the C4KX-NM-8SFP+, a Network Uplink 8-port Expansion Module designed for the Catalyst 4500-X series. In this detailed guide, we will explore the key features, benefits, and applications of the C4KX-NM-8SFP+, shedding light on its significance in modern network infrastructures.

Overview of Catalyst 4500-X Series SFP+ Gigabit Ethernet Expansion Module

To comprehend the role of the C4KX-NM-8SFP+, it's crucial to first understand the Catalyst 4500-X series. Known for its high performance, scalability, and modular design, this series is a cornerstone of Cisco's networking solutions. The Catalyst 4500-X series serves as a robust platform for various network deployments, ranging from enterprise to data center environments.

Understanding the C4KX-NM-8SFP+ ModulePhysical Attributes

The C4KX-NM-8SFP+ is an expansion module specifically designed to enhance the network uplink capabilities of Catalyst 4500-X switches. With its compact form factor, this module provides eight Small Form-Factor Pluggable Plus (SFP+) ports, allowing for seamless connectivity and high-speed data transmission.

Form Factor and Ports

The C4KX-NM-8SFP+ expansion module is designed to seamlessly integrate with the Catalyst 4500-X series switches. One of its key attributes is its compact Small Form-Factor Pluggable Plus (SFP+) form factor, ensuring efficient use of space in networking environments. With eight ports supporting 10 Gigabytes Per Second (GBPS) data transfer rates, this module empowers networks with high-speed connectivity for data-intensive applications.

Plug-and-Play Functionality

One of the standout features of the C4KX-NM-8SFP+ is its Plug-and-Play functionality. The module is hot-swappable, allowing for easy installation and replacement without disrupting the overall network operation. This not only simplifies the deployment process but also enhances the overall agility of the network infrastructure.

Key Features10 Gigabytes Per Second (GBPS) Speed

The standout feature of the C4KX-NM-8SFP+ is its impressive data transfer rate of 10 GBPS per port. This capability is pivotal for meeting the increasing bandwidth demands of modern applications and ensuring a responsive and reliable network.

Small Form-Factor Pluggable Plus (SFP+) Compatibility

The utilization of SFP+ technology not only contributes to the module's compact design but also enables hot-swapping of fiber optic or copper cables. This flexibility facilitates easier upgrades and maintenance without disrupting network operations.

High-Speed Connectivity

The primary function of the C4KX-NM-8SFP+ is to provide high-speed connectivity between Catalyst 4500-X switches and other network devices. The 10 GBPS data transfer rate per port ensures swift and efficient data transmission, making it suitable for bandwidth-intensive tasks such as data center applications, video streaming, and large-scale data transfers.

Advantages of C4KX-NM-8SFP+ in Network DeploymentsEnhanced Uplink Capacity

One of the primary benefits of incorporating the C4KX-NM-8SFP+ module is the significant boost in uplink capacity. With eight high-speed SFP+ ports, businesses can seamlessly handle increased data traffic, support more devices, and future-proof their network infrastructure.

Scalability and Flexibility

The modular nature of the Catalyst 4500-X series, coupled with the C4KX-NM-8SFP+ module, offers unparalleled scalability. Organizations can expand their network capabilities as needed, ensuring that the infrastructure grows in tandem with business requirements.

Improved Performance and Reliability

The 10 GBPS speed per port ensures a fast and reliable network connection, reducing latency and enhancing overall performance. This is particularly crucial for bandwidth-intensive applications such as video conferencing, data backups, and large-scale file transfers.

Simplified Network Management

The integration of the C4KX-NM-8SFP+ module streamlines network management by consolidating multiple high-speed connections into a single expansion module. This not only simplifies cable management but also enhances the overall efficiency of the network.

Use Cases and ApplicationsData Center Networks

In data center environments, where high-performance networking is paramount, the C4KX-NM-8SFP+ module finds its niche. The module's ability to handle large volumes of data with minimal latency makes it an ideal choice for connecting servers, storage devices, and other critical components within a data center.

Enterprise Networks

Enterprises with diverse networking needs can leverage the C4KX-NM-8SFP+ module to optimize their network infrastructure. Whether it's connecting various departments, supporting remote offices, or facilitating collaboration tools, the module's scalability and speed contribute to a robust and responsive network.

Educational Institutions

Educational institutions with a growing reliance on digital resources and e-learning platforms benefit from the C4KX-NM-8SFP+ module. The high-speed connectivity ensures seamless access to online educational content, video streaming, and collaborative tools, enhancing the overall learning experience.

Campus Networks

In campus network environments, where diverse devices and users are connected, the C4KX-NM-8SFP+ contributes to a robust and high-performance infrastructure. The module's ability to handle large amounts of data traffic makes it suitable for connecting various departments, classrooms, and administrative areas within an educational institution.

Resiliency and High Availability

The Cisco C4KX-NM-8SFP+ 8-ports 10 Gigabit Ethernet Expansion Module can contribute to resiliency and high availability in a number of ways, depending on how it is used in a network.

Some of the key features include:

  • Link Aggregation Control Protocol (LACP) support: LACP allows multiple physical connections to be bundled together to form a single logical link. This can provide increased bandwidth and redundancy, as traffic can be load-balanced across multiple connections and if one link fails, the traffic can be rerouted over the remaining links.
  • Quality of Service (QoS) support: QoS allows network administrators to set priorities for different types of traffic, such as voice or video. This can help ensure that mission-critical traffic is given priority over less important traffic, improving resiliency for time-sensitive applications.
  • Flexible NetFlow (FNF) support: FNF provides network administrators with detailed visibility into network traffic, enabling them to detect and troubleshoot issues quickly, thereby reducing downtime.
  • Hardware-based forwarding tables: The Cisco product uses specialized hardware for forwarding packets, which can significantly improve the performance of the router.
  • Support for Virtual Router Redundancy Protocol (VRRP): This protocol allows multiple routers to share a virtual IP address so that if the primary router fails, a secondary router can take over its duties.

These features of the C4KX-NM-8SFP+ module can increase the availability of network connectivity and services, while also providing the ability to detect and troubleshoot network issues quickly, enabling the network to recover from failures more quickly, thus delivering a more resilient and highly available network.

General Information of the Cisco C4KX-NM-8SFP+ 8 Ports Expansion Module
  • Manufacturer: Cisco
  • Model Number or SKU# C4KX-NM-8SFP+
  • Product Name: Catalyst 4500-X Module
  • Product Type: Expansion Module
Technical Information for SFP+ Ethernet Expansion Module
  • Total Number of Ports: 8
  • Application/Usage: Optical Network
  • Application/Usage: Data Networking
I/O Expansions of 8 Ports Module
  • Number of Total Expansion Slots: 8
  • Expansion Slot Type: SFP+
Scalability for SFP+ Expansion Module
  • System Throughput Up to 800 Gbps
  • IPv4 Routing in Hardware Up to 250 Mpps
  • IPv6 Routing in Hardware Up to 125 Mpps
  • L2 Bridging in Hardware Up to 250 Mpps
  • Media Access Control (MAC) Entries 55K
  • Flexible Netflow Entries 128K
  • Switched Port Analyzer (SPAN), Remote Switched Port Analyzer (RSPAN) 8 line rate bidirectional sessions (ingress and egress)
  • Total VLANs 4094
  • Total Switched Virtual Interfaces (SVIs) 4094
  • IGMP groups 32K
  • Dynamic Host Configuration Protocol (DHCP) Snooping Entries 12K (DHCP snooping bindings)
  • ARP Entries 47K
  • Spanning Tree Protocol Instances 10K
  • Jumbo Frame Support for Bridged and Routed Packets Up to 9216 bytes
CPU and Memory
  • Onboard Memory (SRAM DDR-II): 4 GB
  • Port Buffers: 32-MB Shared Memory
  • CPU: Dual Core 1.5 GHz
  • NVRAM: 2 GB
  • Optional External Memory (SD Card): 2 GB

QoS Features

  • Port Queues: 8 Queues/Port
  • CPU Queues: 64
  • QoS Entries: 128K (64K ingress and 64K in egress) Shared with ACL
  • Aggregate Rate-Limiting: Ingress port or VLAN and egress VLAN or Layer 3 port
  • Rate-Limiting Level Types: Committed Information Rate (CIR), Peak Information Rate (PIR)
  • Aggregate Traffic Rate-Limiting Policers (1K=1024): 16K
  • Flow-Based Rate-Limiting Method; Number of Rates: Supported using flow-records in the classification criteria and policing action
  • Qos Policy Enforcement: Per Port or Per VLAN or Per Port, Per VLAN Granularity
  • Class of Service (CoS): Yes
  • Differentiated Services Code Point (DSCP): Yes

Power Supply

  • AC Power Max Rating: 750W
  • System Power Consumption: 330W nominal/400W max
  • Input-Voltage Range and Frequency: AC 100 to 240 VAC 50-60 Hz/DC -72 VDC to -40 VDC
  • DC Power Max Rating: 750W
  • AC to DC failover and vice versa: Yes
  • Total Output BTU (Note: 1000 BTU/hr = 293W): 1122 BTU/hr (330 W) nominal/1365 BTU/hr (400 W) max
  • Input Current: AC 11A -110VAC, 6 A -200VAC/DC 25A Max
  • Output Ratings: 12V-62A & 3.3V- 3A
  • Output Holdup Time: AC = 16 ms; DC = 4 ms-maximum load
  • Power-Supply Input Receptacles: AC IEC 60320 C15/DC Custom detachable screw terminal (supplied)
  • Power Cord Rating: AC 15A/DC 25A

Regulatory Standards Compliance

  • Regulatory Compliance: CE marking

EMI and EMC Compliance

  • 47CFR Part 15 (CFR 47) Class A
  • AS/NZS CISPR22 Class A
  • CISPR22 Class A
  • EN55022 Class A
  • ICES003 Class A
  • VCCI Class A
  • EN61000-3-2
  • EN61000-3-3
  • KN22 Class A
  • CNS13438 Class A
  • EN55024
  • CISPR24
  • EN300386
  • KN24

Safety Certifications

  • UL 60950-1 Second Edition
  • CAN/CSA-C22.2 No. 60950-1 Second Edition
  • EN 60950-1 Second Edition
  • IEC 60950-1 Second Edition
  • AS/NZS 60950-1
  • Industry EMC, Safety, and Environmental Standards: GR-63-Core Network Equipment Building Systems (NEBS) Level 3, GR-1089-Core Level 3


  • Cisco Catalyst 4500-X Series Switches
  • WS-C4500X-32SFP+
  • WS-C4500X-16SFP+
  • WS-C4500X-F-32SFP+
  • WS-C4500X-F-16SFP+

In summary, the C4KX-NM-8SFP+ module stands as a testament to Cisco's commitment to innovation in networking solutions. Its integration with the Catalyst 4500-X series brings forth a multitude of benefits, from enhanced uplink capacity to improved network performance. As businesses navigate the complexities of modern networking, the C4KX-NM-8SFP+ module emerges as a reliable and scalable solution, paving the way for a connected future.

Product Condition:
Warranty provided by ALLHDD.COM:
90 Days

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