The "NVIDIA ConnectX MCX4121A ACUT" appears to be a model number for a network interface card (NIC), specifically an InfiniBand Host Channel Adapter (HCA) from NVIDIA. Here's some general information about the product based on the model number and typical specifications for such devices:

1. Introduction:

The NVIDIA ConnectX series is known for providing high performance networking solutions, particularly for high speed data centers, scientific computing, and enterprise applications that require low latency and high throughput communication.

2. Speed:

The "MCX4121A ACUT" model suggests it is part of the ConnectX 4 series, which typically supports InfiniBand EDR (Extended Data Rate) with speeds up to 100 Gbps. EDR is a faster version of the InfiniBand standard, offering improved performance over previous generations.

3. Interface Type:

InfiniBand is a switched fabric network technology used for interconnecting servers, storage systems, and network devices. It is known for its high performance and low latency, making it suitable for applications that require high speed data transfer.

4. Hardware Interface:

The hardware interface for this card would be the InfiniBand port, which is a specialized connector designed for high speed data transfer. The exact physical form factor (e.g., QSFP28, QSFP+) would depend on the specific model and configuration.

5. Chip Type System:

NVIDIA's ConnectX 4 series uses the NVIDIA NVL3040 ASIC, which is a high performance chip designed to support the InfiniBand EDR standard. This chip enables the card to achieve the high data rates and low latency required for demanding applications.

6. Additional Features:

These cards often come with advanced features such as RDMA (Remote Direct Memory Access) support, which allows for direct memory access from one computer to another without involving the operating system, reducing latency and improving performance. They may also support various network protocols and have features like error correction and flow control to ensure reliable data transfer.

Please note that the specific details such as the exact physical dimensions, power requirements, and other technical specifications would be available in the product datasheet or user manual provided by NVIDIA. If you need more detailed or specific information, it would be best to consult the official NVIDIA documentation or contact their support directly.

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