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100GbE NIC Mellanox Network Card MCX516A-CCAT Dual-Port QSFP28 PCIe3.0x16

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100GbE NIC Mellanox Network Card MCX516A-CCAT Dual-Port QSFP28 PCIe3.0x16

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Brand Name :Mellanox
Model Number :MCX516A-CCAT
MOQ :1pcs
Price :Negotiate
Payment Terms :T/T
Packaging Details :outer box
Supply Ability :Supply by project/batch
Products Status :Stock
Application :Server
Interface Type :QSFP28
Ports :Dual
Condition :new and original
Warranty time :1 year
Technology :Ethernet
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Mellanox ConnectX-5 EN MCX516A-CCAT 100GbE Network Interface Card

1. Product Overview

The Mellanox ConnectX-5 EN MCX516A-CCAT is a high-performance, dual-port 100Gb/s Ethernet network card designed for demanding data center applications. This intelligent network card supports PCIe 4.0 and features advanced hardware offloads for networking, storage, and virtualization workloads. It delivers industry-leading throughput with ultra-low latency (750ns) and exceptional message rate performance (up to 200Mpps). The ConnectX-6 series predecessor, this nic card provides robust connectivity solutions for cloud, enterprise, and telco environments.

2. Key Characteristics

  • Dual-port 100GbE connectivity using QSFP28 interfaces
  • PCI Express 4.0 x16 host interface with backward compatibility
  • Hardware offloads for NVMe over Fabrics, vSwitch/vRouter, and overlay networks
  • RDMA over Converged Ethernet (RoCE) support
  • SR-IOV virtualization with up to 512 virtual functions
  • Advanced power management and energy efficient Ethernet
  • Multi-host support through Mellanox Socket Direct technology

3. Core Technologies

The ConnectX-5 EN network card incorporates several groundbreaking technologies:

  • ASAP² Accelerated Switching and Packet Processing
  • RoCE (RDMA over Converged Ethernet) v2
  • Open vSwitch hardware offloading
  • NVMe over Fabrics target offloads
  • PCIe 4.0 with embedded switch capabilities
  • Multi-Host and Socket Direct technologies

This advanced nic card supports numerous industry standards including IEEE 802.3bj/bm/ba Ethernet standards, IEEE 802.1Q VLAN, and PCI-SIG PCIe 4.0 specifications.

4. Working Principle

The ConnectX-5 EN network card operates by offloading network processing tasks from the host CPU to specialized hardware on the adapter. Through its programmable pipeline architecture, the card handles packet processing, encapsulation/decapsulation of overlay networks (VXLAN, NVGRE, GENEVE), and storage protocol operations directly in hardware. The embedded PCIe switch enables efficient data movement between hosts and peripherals, while RDMA capabilities allow for direct memory access between systems, significantly reducing latency and CPU overhead. This sophisticated nic card represents the evolution toward the ConnectX-6 generation of adapters.

5. Applications

  • Cloud Data Centers: Virtualized infrastructure, web services, and multi-tenant environments
  • High-Performance Computing: AI/ML clusters, scientific computing, and research facilities
  • Storage Networks: NVMe over Fabrics, SAN extensions, and hyperconverged infrastructure
  • Telecommunications: NFV implementations, 5G infrastructure, and edge computing
  • Financial Services: Low-latency trading systems and real-time analytics platforms

6. Specifications

Parameter Specification
Model Number MCX516A-CCAT
Port Configuration Dual-port QSFP28
Data Rate 100, 50, 40, 25, 10, 1 GbE
Host Interface PCIe 4.0 x16
Latency 750ns
Message Rate 200M messages/second
Form Factor Standard Height, Full Length
Power Consumption < 15W typical
Operating Temperature 0°C to 55°C

7. Advantages

  • Performance Leadership: Industry-lowest latency and highest message rate for real-time applications
  • CPU Efficiency: Dramatically reduces host CPU utilization through comprehensive hardware offloads
  • Versatility: Supports multiple Ethernet speeds and form factors for flexible deployment
  • Future-Proof: Programmable pipeline enables support for emerging protocols without hardware changes
  • Cost Reduction: Host Chaining technology eliminates need for top-of-rack switches in certain configurations

8. Service & Support

We provide comprehensive support including:

  • Standard 3-year warranty with optional extensions
  • Global technical support available 24/7
  • Firmware updates and compatibility verification
  • Integration assistance with major server and storage platforms
  • Custom configuration services for large deployments

9. Frequently Asked Questions

Q: What is the difference between ConnectX-5 and ConnectX-6?
A: While the ConnectX-6 offers higher port densities and enhanced performance, the ConnectX-5 provides exceptional value for 100GbE deployments with similar feature sets including advanced offload capabilities.

Q: Does this network card support SR-IOV virtualization?
A: Yes, the MCX516A-CCAT supports SR-IOV with up to 512 virtual functions, enabling efficient hardware-based virtualization.

Q: What cables are compatible with this NIC?
A: The card supports various QSFP28 direct attach copper cables, active optical cables, and transceivers for single-mode or multi-mode fiber.

10. Precautions

  • Ensure proper chassis cooling as high-speed network cards generate significant heat
  • Verify PCIe slot compatibility (requires PCIe 3.0 or 4.0 for full performance)
  • Use qualified cables and transceivers to ensure signal integrity and performance
  • Check operating system compatibility before deployment
  • Follow electrostatic discharge (ESD) precautions during installation

11. Company Introduction

100GbE NIC Mellanox Network Card MCX516A-CCAT Dual-Port QSFP28 PCIe3.0x16

With over a decade of industry experience, we have established ourselves as a leading provider of enterprise networking solutions. Our extensive infrastructure includes a large-scale production facility and a dedicated technical team with deep expertise in high-performance networking. We maintain partnerships with premier technology brands including Mellanox, Ruckus, Aruba, and Extreme Networks.

Our inventory exceeds $10 million in value, ensuring immediate availability of products like the ConnectX-5 network card. We offer competitive pricing without compromising on quality or service excellence. Our commitment extends beyond the sale with 24/7 customer consultation and technical support, ensuring optimal performance of your networking infrastructure.

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