Network adapter Supermicro NVIDIA Mellanox ConnectX-7 MCX755106AS Dual-Port QSFP112 200G HHHL (MPN 900-9X7AH-0078-DTZ)

The Supermicro NVIDIA Mellanox ConnectX-7 MCX755106AS is a PCIe HHHL network adapter featuring dual QSFP112 ports that support up to 200 Gbit/s per port. Designed for high-performance networking, this server-grade card provides low-latency data transfer and hardware offloads for RDMA, making it suitable for demanding environments such as data centers, high-performance computing clusters and virtualized infrastructures. The card is built for compact half-height half-length server slots and integrates with common server platforms to deliver high throughput and deterministic performance for storage, compute and network-intensive applications.

Advantages

This network adapter delivers high bandwidth and low latency with dual 200 Gbit/s-capable QSFP112 ports, enabling efficient multi-host interconnects and large-scale data movement. Hardware acceleration and RDMA support reduce CPU overhead and improve application performance for distributed storage and HPC workloads. The HHHL form factor allows deployment in space-constrained servers while maintaining enterprise-grade reliability and compatibility with server management software and networking stacks.

Suitable for

• Data center fabric and spine-leaf networking
• High-performance computing (HPC) clusters and MPI workloads
• Distributed storage systems and NVMe-oF targets
• Virtualization platforms and large-scale VM migration
• Low-latency trading and real-time analytics

Key specifications

• Interface: PCIe HHHL form factor compatible with server x16 slots (check platform compatibility)
• Ports: 2 × QSFP112 supporting up to 200 Gbit/s per port
• Supported features: RDMA, hardware offloads for TCP/UDP, GPUDirect and kernel bypass technologies
• Performance: Low-latency packet processing and high throughput suitable for multi-host fabrics
• Physical: Half-height, half-length card designed for blade and rack servers with HHHL slots

How to use

Install the adapter into an appropriate PCIe HHHL slot on a supported server platform following the server manufacturer’s instructions for handling and ESD precautions. Connect QSFP112 transceivers or direct-attach cables to the QSFP112 ports and ensure the chosen optics/cables match the required link speed and distance. Install the vendor-supplied drivers and firmware updates, then configure the operating system networking stack and RDMA settings as required by your workload. Validate link status and throughput with diagnostic tools and perform interoperability checks with switches and storage endpoints.

Usage recommendations

Use certified QSFP112 modules or cables and keep firmware and drivers up to date to ensure stable 200 Gbit/s links and full hardware offload functionality. Verify server BIOS and chassis airflow meet the thermal requirements for high-performance networking cards and monitor link health and error statistics as part of regular infrastructure maintenance.