Cornelis CN5HFA1Q5ALS CN5000 400G Single-Port PCIe SuperNIC

Cornelis CN5HFA1Q5ALS CN5000 400G Single-Port PCIe SuperNIC

The Cornelis CN5HFA1Q5ALS CN5000 400G single-port PCIe SuperNIC delivers up to 400Gbps of bidirectional bandwidth for artificial intelligence and high-performance computing clusters. Its low-profile design, QSFP fabric port, dynamic adapter routing, and traffic optimization support scalable, low-latency communication across demanding compute environments.

Built for generative AI training, agentic AI, inference, and highly parallel HPC applications, this 400G network adapter helps improve GPU utilization and accelerate time-to-results. Zero-latency packet integrity protection reduces data loss, while high message rates support large installations scaling to thousands of interconnected compute nodes.

Advanced error correction and dynamic network function placement promote consistent performance under intensive workloads. The air-cooled adapter typically consumes 15W without optics and fits low-profile PCIe systems. A low-profile bracket arrives installed, while the included standard-height bracket expands compatibility with server and workstation chassis.

Key Features

• 400G Connectivity: Provides up to 400Gbps of bidirectional bandwidth for data-intensive AI and HPC workloads.
• Single QSFP Fabric Port: Supports a streamlined high-bandwidth connection within extreme-scale compute networks.
• Dynamic Adapter Routing: Optimizes network paths to improve scalability and efficient data transmission.
• Traffic Flow Optimization: Reduces congestion and latency across highly parallel computing environments.
• Packet Integrity Protection: Helps prevent data loss without introducing packet-protection latency.
• Advanced Error Correction: Promotes reliable communication during intensive training, inference, and scientific workloads.
• Low-Profile PCIe Design: Fits space-conscious servers while supporting standard-height installations with the included bracket.
• Efficient Air Cooling: Maintains adapter performance with typical single-port power consumption of 15W without optics.

Technical Specifications

• Product Type: Omni-Path PCIe SuperNIC network adapter
• Manufacturer: Cornelis
• Model: CN5000
• Manufacturer Part Number: CN5HFA1Q5ALS
• Bandwidth: 400G
• Maximum Bidirectional Bandwidth: Up to 400Gbps
• Fabric Ports: 1
• Port Type: QSFP
• Adapter Form Factor: Low-profile PCIe
• Installed Bracket: Low-profile bracket
• Cooling: Air-cooled
• Typical Power Consumption: 15W without optics
• Dimensions: 9" x 6" x 1"
• Weight: 1 lb
• Warranty: 3 years

What's In the Box

• Cornelis CN5HFA1Q5ALS CN5000 400G Single-Port PCIe SuperNIC
• Installed low-profile bracket
• Standard-height bracket