The Mellanox MCX455A FCAT is a high performance network adapter, part of Mellanox's ConnectX 4 series. Here's an overview of its key features:

1. Introduction:

The Mellanox MCX455A FCAT is designed for high performance computing (HPC), data centers, and cloud environments. It provides low latency and high throughput connectivity, making it suitable for applications that require high speed data transfer and communication.

2. Speed:

The MCX455A FCAT supports 100Gb/s (100 Gigabit per second) Ethernet connectivity. This high speed data transfer capability is achieved through the use of 4x25Gb/s lanes, which can be aggregated to provide the full 100Gb/s bandwidth.

3. Interface Type:

The adapter uses the QSFP28 (Quad Small Form factor Pluggable) interface, which is a compact, hot pluggable optical transceiver used for 25Gb/s and 100Gb/s Ethernet applications. This interface allows for easy integration into high density server and networking equipment.

4. Hardware Interface:

The MCX455A FCAT is equipped with PCIe 3.0 x8 interface, which provides the necessary bandwidth to support the 100Gb/s throughput. This interface ensures compatibility with a wide range of servers and workstations that have PCIe 3.0 slots.

5. Chip Type System:

The ConnectX 4 series, which includes the MCX455A FCAT, is based on Mellanox's BlueField 1 SoC (System on Chip). The BlueField 1 SoC is a multi core processor that integrates a high performance network interface with a powerful ARM based CPU. This integration allows for advanced features such as RDMA (Remote Direct Memory Access), NVMe over Fabrics, and in network computing capabilities.

6. Additional Features:

  RDMA Support: The adapter supports RDMA over Converged Ethernet (RoCE) and InfiniBand, which are critical for low latency, high throughput applications.

  Virtualization: It supports SR IOV (Single Root I/O Virtualization) and VMDq (Virtual Machine Device Queues) for efficient virtualized environments.

  Energy Efficiency: The ConnectX 4 series is designed with energy efficiency in mind, offering advanced power management features to reduce power consumption.

7. Use Cases:

The MCX455A FCAT is ideal for use in environments where high speed data transfer is critical, such as:

  HPC clusters for scientific research and simulations.

  Financial services for low latency trading and analytics.

  Cloud service providers for high performance virtualized environments.

Please note that specific model details, including firmware versions and exact specifications, may vary and should be verified with the manufacturer or through the latest datasheets for the most accurate and up to date information.

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