The Mellanox MCX4121A ACUT is a high performance network interface card (NIC) designed for high speed data transmission in data centers, cloud computing, and high performance computing (HPC) environments. Here's an overview of its key features:

1. Introduction:

The Mellanox MCX4121A ACUT is part of Mellanox's ConnectX? 4 series, which is known for its advanced features and performance in Ethernet and InfiniBand networks.

2. Speed:

  It supports 100GbE (100 Gigabit Ethernet) speeds, which is suitable for high bandwidth applications that require rapid data transfer.

3. Interface Type:

  The card provides a QSFP28 (Quad Small Form factor Pluggable 28) interface, which is a compact, high density optical transceiver that supports 100GbE.

4. Hardware Interface:

  The MCX4121A ACUT is designed to work with PCIe 3.0 x8 slots, ensuring compatibility with a wide range of servers and workstations that support this standard.

5. Chip Type System:

  Mellanox's ConnectX? 4 series cards are powered by the BlueField SoC (System on Chip), which is a high performance, multi core processor designed for networking and storage applications. The BlueField SoC can offload processing tasks from the host CPU, improving overall system performance and efficiency.

6. Additional Features:

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

  VPI (Virtual Protocol Interconnect): Enables the creation of multiple virtual interfaces on a single physical card, which can be used to isolate different network traffic types or to support multiple virtual machines.

  Energy Efficient: Mellanox cards are designed with energy efficiency in mind, reducing power consumption while maintaining high performance.

  Advanced Diagnostics and Monitoring: The MCX4121A ACUT includes tools for monitoring and diagnosing network performance, which can help in troubleshooting and optimizing network operations.

7. Use Cases:

  The MCX4121A ACUT is ideal for applications that require high speed data transfer, such as big data analytics, machine learning, and scientific simulations.

Please note that specific details such as the exact model number, firmware versions, and other technical specifications can vary, and it's always recommended to check the latest datasheets or product documentation from Mellanox for the most accurate and up to date information.

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