NVIDIA MCX755106AC-HEAT ConnectX-7 Adapter Card 200GbE/NDR200 Crypto Enabled

The NVIDIA MCX755106AC-HEAT is a next-generation ConnectX-7 adapter designed to power the most demanding data centers, HPC clusters, and AI workloads with unprecedented throughput and intelligent offloads. Engineered for high-performance computing environments, this 200GbE/NDR200 Crypto Enabled card combines blazing network speed with hardware-assisted security, delivering a compelling blend of speed, security, and reliability. The HEAT variant features a robust heatsink to maintain peak performance under sustained load in dense server configurations, helping data centers push past thermal constraints while preserving quiet operation. Ideal for large-scale simulations, distributed training, real-time analytics, and secure data movement across racks, the MCX755106AC-HEAT is built to accelerate data-centric workflows and simplify management at scale.

• Unmatched 200GbE throughput with hardware offloads for HPC and AI workloads. The ConnectX-7 architecture enables ultra-fast data movement between servers, storage systems, and accelerators while minimizing CPU overhead. In practice, you’ll experience lower latency, higher IOPS, and improved application responsiveness as workloads scale across nodes. This is essential for large-scale simulations, real-time analytics, and data-intensive machine learning pipelines where every millisecond matters. The 200GbE capability also provides ample headroom for multi-tenant environments, ensuring consistent performance even during peak traffic periods.
• PCIe 5.0 x16 interface for bandwidth-abundant connectivity. The MCX755106AC-HEAT leverages the latest PCIe standard to maximize bus bandwidth and reduce interconnect bottlenecks. This high-speed link supports multi-queue traffic steering, virtualization-friendly I/O, and advanced offloads that keep host CPUs free for compute tasks. In virtualized data centers, cloud deployments, and GPU-accelerated environments, that translates to near-native performance for virtual machines and containers sharing the same NIC, along with smoother live migrations and scalable network throughput as you scale node counts.
• Crypto Enabled with hardware-accelerated encryption. This NIC includes an integrated crypto engine that offloads data-in-motion encryption and decryption, enabling secure transmission across racks, between data centers, and over encrypted storage networks without imposing CPU overhead. For regulated workloads, sensitive data transfers, and compliant architectures, hardware crypto offload provides an essential combination of security and performance. It also supports common encryption standards used in enterprise networks, ensuring your traffic remains protected as it traverses modern fabric topologies.
• Advanced networking features for flexible, efficient deployments. The adapter supports RoCEv2 for low-latency RDMA over Ethernet, enabling remote memory access with minimal CPU involvement. It also accommodates virtualization features such as SR-IOV and multi-queue processing, which helps improve isolation and throughput for virtual machines and containers. In addition, jumbo frames, TCP offloads, and other NIC accelerations contribute to reduced CPU load and enhanced efficiency in busy clusters, data fabrics, and storage networks. These capabilities make the MCX755106AC-HEAT a versatile building block for scalable, resilient networks that demand consistent performance across diverse workloads.
• Reliability, cooling, and manageability for dense data centers. The HEAT variant is designed with a robust heatsink and thermal envelope to sustain peak performance in compact server trays and high-density racks. The card is built to integrate with standard NVIDIA networking software stacks, driver updates, and firmware management, providing predictable behavior across deployments. With stable thermals, enterprise-grade security features, and straightforward administration, administrators can deploy this NIC with confidence in large-scale clusters where uptime and performance consistency are paramount.

Technical Details of NVIDIA MCX755106AC-HEAT

• PCIe Interface: PCIe 5.0 x16
• Network Speeds: 200GbE Ethernet with NDR200 support
• Crypto Capabilities: Hardware-accelerated crypto offload for data-in-motion
• Form Factor: Add-in Card with HEAT heatsink; compatible with standard PCIe slots
• Software and Features: RoCEv2, SR-IOV, multi-queue, NVIDIA networking software compatibility

How to install NVIDIA MCX755106AC-HEAT

Install the MCX755106AC-HEAT to unlock its high-performance networking capabilities. Follow these steps to ensure a proper and safe installation, plus optimal performance after setup.

• Power down the system, unplug power cords, and discharge static electricity before handling components. Ground yourself and use an anti-static wrist strap if available.
• Open the server chassis and locate an available PCIe 5.0 x16 slot that matches the card’s height. Ensure there is enough clearance for the HEAT heatsink and adjacent cards, and verify that your chassis supports full-height or low-profile installation as required.
• Remove the slot cover, align the edge connector with the PCIe slot, and firmly seat the MCX755106AC-HEAT into place. Apply even pressure until it is fully seated and secured with a mounting screw to the chassis.
• Power on the server. Install or update the NVIDIA ConnectX-7 driver package from the official NVIDIA Networking software repository, and perform any firmware updates if prompted by the installer. Reboot if required to complete the driver and firmware initialization.
• Configure operating system networking, verify a 200GbE link, and run baseline performance tests to confirm expected throughput and latency characteristics. Monitor thermal readings under load to ensure the HEAT heatsink maintains safe operating temperatures during sustained traffic.

Frequently asked questions

• Q: What is NVIDIA MCX755106AC-HEAT?
  A: It is a ConnectX-7 Ethernet adapter card offering up to 200GbE (NDR200) with hardware crypto offload, designed for HPC, AI, and data-center workloads. The HEAT variant includes a dedicated heatsink for improved cooling in dense server configurations.
• Q: Which workloads benefit the most?
  A: High-performance computing, AI and machine learning workloads, large-scale data analytics, distributed storage networks, and cloud-scale deployments that require extreme throughput, low latency, and secure data movement.
• Q: Does it support RDMA?
  A: Yes. The MCX755106AC-HEAT supports RoCEv2, enabling low-latency, CPU-efficient data transfers between servers for fast distributed computing and storage access.
• Q: Is hardware encryption available?
  A: Yes. The crypto-enabled capability provides hardware-accelerated encryption/decryption for data in motion, reducing CPU load while maintaining strong data protection.
• Q: How do I install drivers?
  A: Install the latest NVIDIA Networking software package from the official NVIDIA site or your OS vendor repository, reboot if required, and verify that the NIC is detected and functioning with network tests and speed tests.
• Q: Is this NIC compatible with my server?
  A: The card uses a PCIe 5.0 x16 interface. Check your motherboard and chassis specifications for PCIe slot compatibility, height clearance for the HEAT heatsink, and available bandwidth for 200GbE traffic in your environment.