Network Card Mellanox Technologies MCX512A-ACAT 25000 Mbit/s Internal Fiber

The NVIDIA Mellanox MCX512A-ACAT is an internal fiber network adapter built for high-performance environments. It supports RDMA and advanced application offloads to accelerate workloads in HPC, cloud, web and storage platforms, and is engineered to deliver low latency and high message rates for demanding tasks.

Advantages

This network card provides two 100GbE-capable ports, sub-600ns latency, and hardware offloads including PCIe switch and NVMe over Fabrics support. It offers scalable performance for machine learning, data analytics and other high-throughput applications while using a PCI Express interface for server integration.

Suitable for

• High-Performance Computing (HPC) clusters
• Cloud and Web2.0 platforms
• Storage systems with NVMe over Fabrics
• Machine learning and data analytics workloads
• Data centers and enterprise networking

Key specifications

• Interface: PCI Express
• Physical connection: internal fiber
• Maximum throughput: 25000 Mbit/s (specified model summary)
• RDMA-enabled with ConnectX-5 EN features
• Two 100Gb Ethernet-capable ports; low sub-600ns latency
• Offloads: PCIe switch, NVMe over Fabrics, application offloads
• Brand: NVIDIA (Mellanox)
• MPN: MCX512A-ACAT

How to use

Install the card into an available PCI Express slot in a compatible server chassis and connect the fiber cabling to the appropriate ports. Configure the host operating system with the recommended NVIDIA/Mellanox drivers and firmware, then enable RDMA and offload features as needed for your workloads. Verify network settings and test throughput and latency with appropriate benchmarking tools before deploying into production.

Recommendations

Use certified fiber transceivers and cables, keep drivers and firmware up to date, and consult NVIDIA/Mellanox compatibility matrices for switch and storage integration to ensure full performance and feature support.