The NVIDIA ConnectX MCX4421A ACQN is a high performance network adapter designed for high speed data transfer in data centers and high performance computing (HPC) environments. Here's an overview of its key features:

1. Introduction:

  The ConnectX 4 series, which includes the MCX4421A ACQN, is known for its advanced capabilities in providing high throughput, low latency, and energy efficient connectivity for cloud, AI, and HPC applications.

2. Speed:

  The MCX4421A ACQN supports 100GbE (100 Gigabit Ethernet) connectivity, which is suitable for demanding applications that require high data transfer rates.

3. Interface Type:

  It features a QSFP28 (Quad Small Form factor Pluggable) interface, which is a compact, hot pluggable optical transceiver that supports 100GbE.

4. Hardware Interface:

  The adapter is designed to work with PCIe (Peripheral Component Interconnect Express) 3.0 or 4.0 interfaces, ensuring compatibility with a wide range of server and workstation motherboards.

5. Chip Type System:

  The ConnectX 4 series is based on NVIDIA's NVL3200 ASIC (Application Specific Integrated Circuit), which is optimized for high performance networking.

6. Additional Features:

  RDMA (Remote Direct Memory Access): Supports RDMA over Converged Ethernet (RoCE) v2, which allows for direct memory access from one computer to another without involving the operating system, reducing latency and CPU overhead.

  Energy Efficiency: The ConnectX 4 series is designed to be energy efficient, with features like Dynamic Power Management (DPM) and low power idle modes.

  Virtualization: Supports single root I/O virtualization (SR IOV) and virtualized I/O (VIO) for virtualized environments.

  Security: Incorporates advanced security features to protect data integrity and confidentiality.

7. Use Cases:

  The MCX4421A ACQN is particularly suited for applications such as distributed storage, high frequency trading, genomic sequencing, and other data intensive tasks that require rapid and reliable network communication.

Please note that specific details such as the exact system requirements, supported operating systems, and other technical specifications can vary and should be verified with the latest product documentation or directly from NVIDIA.

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