NVIDIA ConnectX-6 Dx Network Adapter 200GbE PCIe 4.0

The NVIDIA MCX623105AN-VDAT is a network adapter designed for servers that need dependable, high-speed connectivity in cloud and enterprise data centers. Using the ConnectX-6 Dx architecture, it supports an aggregated bandwidth of up to 200 gigabits per second through a single QSFP56 port, giving administrators the headroom required for large-scale virtualization, distributed storage, and AI or HPC clusters.

A PCI Express 4.0 x16 interface links the adapter to the host system, allowing data to flow without the bottlenecks that often limit earlier PCIe generations. This design helps applications that depend on rapid east-west traffic, such as microservices or containerized workloads, maintain consistent performance even as demand grows.

The card supports a broad set of Ethernet link rates, including 10, 25, 40, 50, 100, and 200 gigabit per second connections. That flexibility lets networking teams phase in new infrastructure at their own pace while keeping the same adapter installed. A single QSFP56 port also reduces cabling complexity and simplifies upgrades to higher speeds.

This VDAT variant does not include onboard cryptographic engines, making it a straightforward fit for environments that rely on external security appliances or software-based encryption. By omitting hardware crypto, the adapter focuses entirely on fast packet processing and keeps latency to a minimum, which benefits latency-sensitive workloads such as real-time analytics and financial trading platforms.

The combination of low latency, minimal CPU overhead, and broad speed compatibility makes the NVIDIA MCX623105AN-VDAT a practical choice for cloud service providers, enterprise data centers, and research institutions that need consistent performance today and an easy path to faster networks tomorrow.

Highlights:

• Single-port QSFP56 design with up to 200 Gbps throughput
• PCI Express 4.0 x16 host interface for wide data paths and low bottlenecks
• Supports 10G, 25G, 40G, 50G, 100G, and 200G Ethernet link rates
• No onboard cryptographic capabilities
• Low latency operation with reduced CPU utilization
• Optimized for cloud, enterprise, and high-performance computing workloads