The NVIDIA ConnectX MCX4411A ACQN is a high performance network adapter designed for data centers, high performance computing (HPC), and other applications that require high speed, low latency connectivity. Here's an overview of its key features:

1. Introduction:

  The ConnectX 4 series, which includes the MCX4411A ACQN, is designed to support high speed Ethernet and InfiniBand connectivity. It is optimized for cloud, enterprise, and high performance computing environments.

2. Speed:

  The MCX4411A ACQN supports 100GbE (100 Gigabit Ethernet) and 40GbE (40 Gigabit Ethernet) speeds, providing high throughput connectivity for demanding applications.

3. Interface Type:

  The adapter provides dual port connectivity, with each port capable of supporting 100GbE or 40GbE speeds, depending on the configuration.

4. Hardware Interface:

  The hardware interface is based on the QSFP28 (Quad Small Form factor Pluggable) standard, which allows for compact form factors and high density cabling in data centers.

5. Chip Type System:

  The ConnectX 4 series is powered by NVIDIA's advanced NVL (NVIDIA Virtual Layer) technology, which provides a high performance, low latency, and highly reliable network interface. The specific chip used in the MCX4411A ACQN is the NVIDIA ConnectX 4 ASIC.

6. Additional Features:

  RDMA (Remote Direct Memory Access): Supports RDMA over Converged Ethernet (RoCE) and RDMA over InfiniBand, which allows for direct memory access from one computer to another without involving the operating system, reducing latency and improving performance.

  Energy Efficiency: The ConnectX 4 series is designed with energy efficiency in mind, offering advanced power management features to reduce power consumption without sacrificing performance.

  Virtualization Support: Supports single root I/O virtualization (SR IOV) and virtual machine queue (VMQ) technologies, which enable efficient virtualization of network resources in cloud environments.

  Reliability: Features advanced error correction and fault tolerance mechanisms to ensure high reliability in mission critical applications.

The NVIDIA ConnectX MCX4411A ACQN is a versatile and powerful network adapter that can significantly enhance the performance of data center and HPC applications by providing high speed, low latency connectivity.

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