NVIDIA
ConnectX-6 Dx EN Adapter (Blade Form Factor)
Best high-speed network adapter for demanding enterprise data center environments.
Elevate your network infrastructure with the NVIDIA ConnectX-6 VPI MCX653105A-HDAT. This advanced network adapter is built for demanding data center environments, featuring a high-speed PCIe 4.0 x16 interface. It supports dual 200Gb speeds for both Ethernet and Infiniband, utilizing a single QSFP28 port for versatile connectivity. Engineered for high-performance computing, it ensures minimal latency and maximum throughput, complemented by robust 512-bit AES-XTS encryption for superior security. This adapter is a vital component for modern, high-speed networks, delivering exceptional performance and reliability.
$1250.00
Owner Satisfaction
4.7
/ 5
Category Rank
14
/ 961
#14 in Network Cards & Adapters
Price vs Category Average
+24%
Above average
Data Transfer Rate
200
/ Gigabit Per Second
Who it's for
- Data scientists running massive AI and machine learning models
- System architects aiming to minimize CPU overhead in data centers
- Cloud providers managing secure, multi-tenant virtualized environments
Who should skip it
- Budget-conscious IT managers prioritizing standard enterprise hardware costs
- Engineers needing versatile hardware for standard rackmount server deployments
- Generalist IT staff lacking specialized networking and driver configuration expertise
Performance breakdown
Data Throughput
Dual 200Gb speeds provide massive bandwidth for the most demanding workloads.
Latency Performance
Optimized architecture ensures near-instantaneous data transmission for high-performance computing.
Security Integration
Hardware-level 512-bit encryption protects sensitive data without compromising network speed.
Protocol Versatility
Virtual Protocol Interconnect allows seamless switching between Ethernet and Infiniband environments.
Interface Efficiency
PCIe 4.0 x16 interface eliminates bottlenecks for rapid data transfer.
Build Reliability
Rugged metal housing ensures durability in dense, high-heat data center racks.
Key Specs
Data Transfer Rate
200 Gigabit Per Second
Interface (Bus) Type
PCI Express 4.0 x16
Connectivity Technology
Wired
Data Link Protocol
Gigabit Ethernet
Encryption Algorithm
512-bit AES-XTS
Number of Ports
1
Connector Type
QSFP28
Maximum Data Rate
200,000.0 MB/s
Features
- Supports 200Gb Ethernet and Infiniband
- High-speed PCIe 4.0 x16 interface
- Virtual Protocol Interconnect (VPI) technology
- Single QSFP28 port for versatile connectivity
- Hardware offloads for enhanced efficiency
- Robust 512-bit AES-XTS encryption
- Designed for high-performance computing
- Optimized for low latency and high throughput
What customers say
Customers highly value the NVIDIA ConnectX-6 Dx EN Adapter for its exceptional performance in demanding data center environments. The core focus is on its superior throughput, delivering critical 200Gb/s speeds essential for accelerating AI and large data transfers. Users consistently praise the ultra-low latency, which greatly improves application responsiveness, especially in RDMA scenarios. Reliability is a major strength, with reports of seamless operation under heavy, continuous loads confirming its robust, enterprise-grade design. While the initial cost is premium, the consensus is that the significant performance gains and long-term stability fully justify the investment for organizations prioritizing network speed. It is viewed as an indispensable component for cutting-edge infrastructure.
Know before you buy
VPI technology allows the adapter to switch between Ethernet and InfiniBand protocols on the same hardware. This provides the flexibility to adapt your network infrastructure to different high-performance computing requirements without needing to replace the card.
Yes, this card utilizes a PCIe 4.0 x16 interface. While it is backward compatible with older PCIe generations, you will need a full x16 slot to achieve the maximum throughput and performance capabilities of the adapter.
The encryption is handled via hardware offloads directly on the adapter. This ensures that your data remains secure without placing an additional processing burden on your server's CPU, maintaining low latency and high throughput.
Yes, the ConnectX-6 Dx is designed specifically for blade form factor environments. It is intended for integration into high-density rackmount server configurations commonly found in modern data centers.
While the adapter is built for 200Gb speeds, it is designed for high-performance environments using QSFP28 connectivity. You should ensure your existing switches and cabling are compatible with the QSFP28 standard to maintain stable connectivity.
Because this model features a single port, it is typically deployed in environments where redundancy is managed at the server or fabric level. If you require dual-port redundancy on a single card, you may need to consider a dual-port variant of the ConnectX-6 series.
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