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NXM-X16C
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Nexus 100G Line Expansion Module
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Name:
NXM-X16C
- Description:
- Nexus 100G Line Expansion Module
- 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:
$5,968.00
- Price:
$3,139.0047.4% off
Quantity:
1
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NXM-X16C Overview
NXM-X16C is a high-performance 10Gbps Ethernet network card designed to deliver reliable, high-speed connectivity across modern networking environments. It features an RJ-45 connector and PCIe form factor, making it a versatile solution for data centers that require seamless integration with routers, switches, and servers while supporting essential protocols such as TCP/IP and iSCSI.
NXM-X16C is engineered for use in scenarios that demand robust network interface upgrades and high-speed data transmission, ensuring secure and efficient communication within virtualized and high-density server environments. Its design optimizes for auto-negotiation, wake-on-LAN, and jumbo frames, making it an ideal choice for expanding data center capacity and connecting to advanced network infrastructures.
NXM-X16C price is $3,139.00, a 47.4% saving from the Cisco list price of $5,968.00. NXM-X16C is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for NXM-X16C for additional pricing. Browse the full Cisco Nexus 3000 Switch Modules & Cards series or explore all Cisco products.
NXM-X16C Specifications
- Product Type
- Network Card
- Brand
- Cisco
- Module Type
- Ethernet
- Data Rate
- 10Gbps
- Connector Type
- RJ-45
- Supported Protocols
- TCP/IP / iSCSI
- Form Factor
- PCIe
- 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
- Auto-negotiation / Wake-on-LAN / Jumbo Frames
- Power Consumption
- 12W
- Interface Ports
- Ethernet
- Product Name
- NXM-X16C Network Card
- Height
- 0.7 inches
- Width
- 3.4 inches
- Depth
- 4.5 inches
- Weight
- 0.5 lbs
NXM-X16C Use Case
Data Center Spine-Leaf Scaling for Hyperscale Workloads
Scenario: A cloud provider is experiencing exponential north-south traffic growth across its spine-leaf fabric. By deploying the NXM-X16C-Nexus 100G Line Expansion Module in Nexus 9500 series switches, operators gain sixteen additional QSFP28 100G uplinks in a single slot. Outcome: 2.56 Tbit/s of non-blocking bandwidth expansion, 50% higher port density per RU, and seamless scaling of compute and storage clusters with sub-microsecond latency—driving improved application performance and reduced congestion.
High-Performance AI/ML Cluster Interconnect
Scenario: An enterprise AI lab needs ultra-low latency and high-capacity links between GPU-accelerated servers for distributed training. Integrating the NXM-X16C into Nexus 9300 switches delivers 1.6 Tbit/s of bi-directional 100G connectivity across 16 ports. Outcome: 40% faster model convergence through optimized throughput, streamlined cable management with breakout optics support, and predictable end-to-end performance—enabling data scientists to reduce iteration time and speed AI innovation.
5G Mobile and Edge Aggregation for Service Providers
Scenario: A telecom operator is rolling out edge compute nodes to support 5G mobile backhaul and MEC services. Installing the NXM-X16C-Nexus 100G module in Nexus 9500 edge routers provides sixteen high-density 100G interfaces for cell-site aggregation. Outcome: Simplified architecture with higher port count per line card, 30% lower power per gigabit, and sub-1 ms latency—ensuring SLA-driven performance, expedited service rollouts, and reduced TCO for next-gen mobile services.
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Product Comparison Table 
| NXM-X16C |  NXM-XBLNK |  NXM-X4D | |
|---|---|---|---|
| Product Type | Network Card | Network Module | Network Module |
| Module Type | Ethernet | Ethernet | Ethernet |
| Data Rate | 10Gbps | 10G | 10Gbps / 40Gbps |
| Connector Type | RJ-45 | SFP+ | SFP+ |
| Supported Protocols | TCP/IP / iSCSI | TCP/IP / iSCSI | TCP/IP / iSCSI |
| Form Factor | PCIe | PCIe | PCIe |
| Operating Temperature | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Storage Temperature | -40 to 85°C | -40 to 85°C | -40 to 85°C |
| Input Voltage | 3.3V | 3.3V | 3.3V |
| Compatibility | Cisco / Juniper / Arista / Dell / HP | Cisco / Juniper / Arista / Dell / HP | Cisco / Juniper / Arista / Dell / HP |
| Max Speed | 10Gbps | 10Gbps | 40Gbps |
| Supported Features | Auto-negotiation / Wake-on-LAN / Jumbo Frames | Auto-negotiation / Wake-on-LAN / Jumbo Frames / QoS | Auto-negotiation / Wake-on-LAN / Jumbo Frames / QoS |
| Power Consumption | 12W | 7W | 15W |
| Interface Ports | Ethernet | SFP+ | Ethernet |
| Product Name | NXM-X16C Network Card | NXM-XBLNK 10G Ethernet Module | NXM-X4D High Performance Ethernet Module |
| Height | 0.7 inches | 1.5 inches | 0.5 inches |
| Width | 3.4 inches | 3.4 inches | 3.0 inches |
| Depth | 4.5 inches | 0.5 inches | 4.0 inches |
| Weight | 0.5 lbs | 0.2 lbs | 1.2 lbs |
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 Scott
4
The Nexus 100G Line Expansion Module has been a great solution for our network. It provides high-speed connectivity and supports our growing bandwidth needs.
E
Emily Harris
4
We installed the NXM-X16C, and it has been fantastic. The 100G performance is top-notch, ensuring that our network operates at peak efficiency.
J
James Roberts
5
The NXM-X16C module provides fast, reliable performance. It's been essential for meeting the demands of our high-capacity network.
S
Sophia King
5
We rely on the NXM-X16C for fast, reliable 100G connectivity. It's easy to install and supports our large-scale network applications.
B
Benjamin White
4
The NXM-X16C has been great for expanding our network. It offers excellent performance, providing fast and stable data transfer across our system.
Questions & Answers
What is the Cisco Nexus NXM-X16C 100G Line Expansion Module (SKU: NXM-X16C)?
The Cisco Nexus NXM-X16C is a high-density, 16-port 100 Gigabit Ethernet line expansion module designed for Cisco Nexus 9500 Series switches, delivering low-latency, high-throughput connectivity for data center networks.
Which chassis are compatible with the NXM-X16C 100G Line Expansion Module?
The NXM-X16C is fully compatible with Cisco Nexus 9500 Series chassis (N9K-9504, N9K-9508 and N9K-9516), providing seamless integration and unified management under Cisco NX-OS.
How many ports does the NXM-X16C provide and at what speed?
The module offers 16 fixed QSFP28 ports, each supporting 100 Gbps line rate, for a total of 1.6 Tbps of full-duplex bandwidth.
What optics and cabling options are supported on NXM-X16C?
NXM-X16C supports a wide range of QSFP28 pluggable transceivers, including SR4, LR4, ER4, and DAC/AOC twinax cables, enabling distances from 5 m (DAC) up to 40 km (ER4).
How do I install the NXM-X16C module in a Nexus chassis?
Power off the Nexus 9500 chassis, slide the NXM-X16C into an available I/O slot until it clicks, secure the latch, then power the chassis back on. The module is hot-pluggable in NX-OS 7.0(3) and later.
What NX-OS software features does the NXM-X16C support?
NXM-X16C supports advanced NX-OS features, including Virtual Extensible LAN (VXLAN), Overlay Transport Virtualization (OTV), FabricPath, VXLAN EVPN, QoS, and segment routing.
What is the typical latency and throughput performance of the NXM-X16C?
NXM-X16C delivers sub-500 ns port-to-port latency and 1.6 Tbps of non-blocking throughput per module, ensuring line-rate forwarding at full capacity.
How can I configure and manage the 100G ports on NXM-X16C?
Use Cisco NX-OS CLI or Cisco DCNM for port provisioning and configuration. Commands like `interface Ethernet1/x` followed by `speed 100000` and `no shutdown` enable 100 Gbps operation.
What are the power and cooling requirements for NXM-X16C?
Each NXM-X16C draws up to 360 W under typical load. It requires proper front-to-back airflow in a Cisco Nexus 9500 chassis with redundant fans and power supplies.
Is the NXM-X16C a field-replaceable unit (FRU)?
Yes, the NXM-X16C is a hot-swappable FRU, allowing in-service replacement without disrupting other modules or network traffic.
What warranty and support options are available for the NXM-X16C?
Cisco offers a limited lifetime warranty on the NXM-X16C, with options for Cisco SMARTnet® service for 24×7 hardware replacement, software updates and technical support.
What are the primary use cases for the Nexus 100G Line Expansion Module?
NXM-X16C is ideal for high-performance spine-leaf architectures, cloud fabrics, AI/ML clusters and storage networks requiring ultra-low latency and high-density 100 GbE.
How does the NXM-X16C enhance data center scalability?
By adding 16×100 GbE ports per module, NXM-X16C scales fabric capacity up to 25.6 Tbps per Nexus 9500 chassis, simplifying growth and reducing network oversubscription.
Does the NXM-X16C support advanced telemetry and monitoring?
Yes, it supports Cisco® Embedded Network Analytics, Streaming Telemetry, YANG-based models and SNMP for real-time performance monitoring and proactive troubleshooting.
What licensing model applies to the NXM-X16C?
The module requires a valid Cisco NX-OS feature license (LAN Base, LAN Enterprise or SD-Access) depending on advanced protocols and software features in use.
How can I troubleshoot common installation issues with NXM-X16C?
Verify chassis slot compatibility, check power and airflow, confirm NX-OS version compatibility (`show module`), and review system logs (`show logging`) for diagnostic errors.
Can I mix NXM-X16C modules with other line cards in the same chassis?
Yes, Cisco Nexus 9500 chassis support mixed line cards, including NXM-X16C and other 10/25/40/100 GbE modules, with unified management under a single NX-OS image.