The Mellanox MCX4411A ACAN is a high performance network adapter card designed for high speed data transmission and communication. Here's a brief introduction to the key features you've asked about:

1. Introduction:

The Mellanox MCX4411A ACAN is part of Mellanox's ConnectX? series, which is known for providing high performance, low latency, and energy efficient network solutions. It is designed for use in data centers, high performance computing (HPC), and other environments where high speed data transfer is critical.

2. Speed:

The MCX4411A ACAN supports speeds up to 100 Gigabit Ethernet (100GbE), which is achieved through the use of PCIe Gen4 x16 interface and QSFP28 transceivers. This high speed capability allows for faster data transfer rates, which is essential for bandwidth intensive applications.

3. Interface Type:

The card uses QSFP28 (Quad Small Form factor Pluggable 28) transceivers, which support 100GbE speeds. QSFP28 is a compact, high density form factor that allows for the transmission of four 25Gb/s signals over a single fiber, resulting in a 100Gb/s aggregate bandwidth.

4. Hardware Interface:

The MCX4411A ACAN features a PCIe Gen4 x16 interface, which provides a high speed connection to the host system. This interface allows for the efficient transfer of data between the network adapter and the system's CPU and memory.

5. Chip Type System:

The card is based on Mellanox's BlueField 2 SoC (System on Chip), which integrates a high performance network interface with a powerful ARM based processor. This SoC enables advanced features such as in network computing, security, and virtualization, which can offload tasks from the host CPU and improve overall system performance.

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 increasing throughput.

  VirtIO: Enables virtualization capabilities, allowing the network adapter to be used in virtualized environments.

  Energy Efficient: Mellanox adapters are known for their energy efficiency, which helps in reducing the overall power consumption of data centers.

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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