The Mellanox 25GbE MCX512A ACAT ConnectX 5 EN Adapter Card is a high performance network interface card (NIC) designed for data centers and high speed computing environments. Here's an overview of its key features:

1. Introduction:

The Mellanox ConnectX 5 EN Adapter Card is part of the ConnectX 5 family, which is known for its advanced capabilities in Ethernet and InfiniBand networking. It is designed to provide high throughput and low latency connectivity, making it suitable for demanding applications such as high performance computing (HPC), artificial intelligence (AI), and cloud computing.

2. Speed:

  Ethernet Speed: The card supports 10/25GbE (Gigabit Ethernet) speeds, which means it can operate at both 10 Gigabits per second (Gbps) and 25 Gbps, providing flexibility for different network environments.

  InfiniBand Speed: The card also supports 100Gb/s InfiniBand EDR (Enhanced Data Rate), which is a high speed interconnect technology used in supercomputing and data centers.

3. Interface Type:

  Ethernet Interface: The card features a 25GbE SFP28 interface, which allows for the use of SFP28 transceivers to connect to 25GbE networks.

  InfiniBand Interface: It also has an InfiniBand QSFP28 interface for connecting to 100Gb/s EDR networks.

4. Hardware Interface:

  PCIe Interface: The card is designed to be installed in a PCIe 3.0 x8 slot, ensuring compatibility with a wide range of servers and workstations.

  Cables and Transceivers: It supports various cable types and transceivers for both Ethernet and InfiniBand, allowing for flexible deployment in different network configurations.

5. Chip Type System:

  Processor: The ConnectX 5 EN is powered by the BlueField 2 SoC (System on Chip), which is a high performance, multi core processor designed for networking and storage applications.

  Features: The BlueField 2 SoC includes advanced features such as hardware based security, virtualization, and acceleration for various protocols, which can offload these tasks from the host CPU, improving overall system performance.

6. Additional Features:

  RoCE: The card supports RDMA over Converged Ethernet (RoCE), which is a protocol that allows for high performance, low latency communication over Ethernet networks.

  VirtIO: It also supports VirtIO, a standard for virtual devices, which enables efficient communication between virtual machines and their host systems.

  Energy Efficiency: The ConnectX 5 EN is designed with energy efficiency in mind, utilizing advanced power management features to reduce power consumption without compromising performance.

7. Operating System Support:

  The card is supported by Mellanox's OFED (OpenFabrics Enterprise Distribution) software, which provides drivers and tools for various operating systems, including Linux, Windows, and VMware.

The Mellanox ConnectX 5 EN Adapter Card is a versatile and powerful solution for organizations that require high speed, reliable, and secure network connectivity for their most demanding applications.

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