900-9X5AD-0055-ST0 Nvidia Connectx-5 50GBE QSFP28 PCIe Network Adapter

Overview of NVIDIA 900-9X5AD-0055-ST0 ConnectX-5 Adapter

The NVIDIA ConnectX-5 EN 50GbE dual-port network interface card is a high-performance enterprise networking adapter designed for data centers, cloud infrastructure, and high-throughput computing environments. Built on PCIe Gen 3.0 x16 architecture, it delivers ultra-fast 50GbE connectivity, advanced RDMA capabilities, and optimized workload acceleration for modern server systems.

General Information

• Manufacturer: NVIDIA
• Part Number: 900-9X5AD-0055-ST0
• Product Type: Network Interface Card (NIC)
• Series: ConnectX-5 EN

Technical Specifications

• Device Type: Network Adapter
• Interface Type: PCIe 3.0 x16
• Ports: 2 x QSFP28 (50GbE each)
• Connectivity: Wired Ethernet
• Data Transfer Rate: Up to 50 GBPS
• Data Rate: 50 Gigabit Ethernet
• Form Factor: PCIe Plug-in Card (Tall Bracket)

Supported Network Protocols

• TCP/IP and UDP/IP
• iSCSI Storage Protocol
• RoCE (RDMA over Converged Ethernet)

Advanced Networking Features

• Jumbo Frame Support
• Quality of Service (QoS)
• VLAN Tagging Support
• Receive Side Scaling (RSS)
• Large Send/Receive Offload (LSO/LRO)
• PXE and UEFI Boot Support
• Jumbo Frame Optimization
• Auto-Negotiation Capability

Supported Industry Standards

• IEEE 802.3ae / 802.3ba / 802.3bj / 802.3bm
• IEEE 802.1Q VLAN Tagging
• IEEE 802.1AX Link Aggregation
• IEEE 802.1p QoS Prioritization
• IEEE 1588v2 Precision Time Protocol

The Nvidia 900-9X5AD-0055-ST0 50GBE 2 PortNetwork Adapter

The Nvidia 900-9X5AD-0055-ST0 ConnectX-5 EN 50GbE Dual-Port QSFP28 PCIe Gen3 x16 Tall Bracket Network Interface Card is a high-performance enterprise networking solution designed for modern data centers requiring ultra-low latency, high throughput, and advanced network offload capabilities. Built on Nvidia’s Mellanox ConnectX-5 architecture, this adapter delivers up to 50GbE per port performance, making it ideal for cloud infrastructure, virtualization clusters, storage networking, high-performance computing, and AI-driven workloads.

50GbE High-Speed Networking

The dual 50GbE ports on this ConnectX-5 adapter enable extremely high data throughput suitable for demanding enterprise workloads. It supports modern hyperscale environments where fast and reliable network communication is essential. The high bandwidth reduces bottlenecks between compute, storage, and application layers. This ensures smooth performance in large-scale distributed systems.

Ultra-Fast Data Transfer

The 50GbE interface significantly improves data transfer speeds compared to traditional 10GbE or 25GbE solutions. This allows faster synchronization between servers and storage systems. It enhances performance for data-intensive applications. Faster transfer rates improve operational efficiency.

High-Throughput Workloads

This NIC is optimized for workloads requiring sustained high throughput such as big data analytics and real-time processing systems. It ensures consistent network performance under heavy load. This reduces latency and improves application responsiveness. High throughput is essential for modern data centers.

Dual-Port QSFP28 Interface

The dual-port QSFP28 design provides flexible connectivity options for enterprise networking environments. It supports multiple network configurations including point-to-point, switch-based, and clustered architectures. Dual ports also allow redundancy and load balancing for mission-critical applications. This improves reliability and scalability in network design.

Enhanced Network Redundancy

Dual-port configuration allows automatic failover in case of link failure. This ensures continuous network availability and minimizes downtime. It improves resilience in enterprise environments. Redundancy is essential for mission-critical systems.

Load Balancing Across Multiple Network Paths

Load balancing distributes network traffic evenly across both ports. This improves bandwidth utilization and reduces congestion. It enhances overall network efficiency. Balanced traffic flow improves performance consistency.

PCIe Gen3 x16 Interface

The PCIe Gen3 x16 interface provides a high-bandwidth connection between the NIC and the host system. It ensures that network traffic is not bottlenecked by the system bus. This enables full utilization of the 50GbE ports. High PCIe bandwidth is essential for demanding networking workloads.

Host-To-Network Data Path

The PCIe Gen3 x16 interface ensures fast data transfer between CPU and network adapter. This reduces latency and improves throughput. It supports high-speed data-intensive applications. Efficient data paths enhance system performance.

Reduced Network Bottlenecks

Virtualized environments require high-speed communication between virtual machines and external networks. This NIC reduces bottlenecks caused by limited PCIe bandwidth. It improves VM networking performance. Reduced bottlenecks enhance virtualization efficiency.

Mellanox ConnectX-5 Architecture

The ConnectX-5 architecture provides advanced networking features including hardware offloads, RDMA support, and intelligent packet processing. It is designed for high-performance computing and cloud environments. This architecture reduces CPU overhead and increases system efficiency. It enables scalable and high-speed networking infrastructure.

Hardware Offload Capabilities

Hardware offloading reduces CPU utilization by handling networking tasks on the NIC. This improves system efficiency and frees CPU resources for applications. It enhances overall system performance. Offloading is essential for high-density environments.

Improved Packet Processing

The ConnectX-5 architecture processes packets at high speed with minimal latency. This improves network responsiveness and reduces jitter. It supports real-time workloads. Efficient packet processing enhances performance consistency.

Low Latency Networking

This NIC is optimized for ultra-low latency networking, making it ideal for financial trading systems, HPC clusters, and real-time analytics platforms. Low latency ensures faster communication between nodes. This improves application responsiveness and system synchronization. It is critical for performance-sensitive environments.

Real-Time Data Communication

Low latency enables real-time communication between distributed systems. This improves coordination across compute nodes. It reduces delays in data transmission. Real-time efficiency is crucial for enterprise workloads.

Time-Sensitive Applications

Applications such as algorithmic trading and AI inference require extremely low latency. This NIC provides predictable and fast network response times. It enhances system accuracy and performance. Time-sensitive workloads benefit significantly.

RDMA Over Converged Ethernet (RoCE)

The ConnectX-5 NIC supports RDMA over Converged Ethernet, enabling direct memory access between servers without CPU intervention. This significantly reduces latency and CPU overhead. It improves performance for distributed storage and HPC workloads. RoCE is essential for modern high-speed data center architectures.

Direct Memory Access For Faster Data Transfer

RDMA allows data to be transferred directly between memory spaces. This eliminates unnecessary CPU processing. It reduces latency and improves throughput. Direct access improves efficiency.

Improved Storage And Cluster Performance

Storage systems benefit from RDMA by reducing I/O overhead. This improves read/write performance significantly. It enhances cluster communication efficiency. Storage acceleration is essential for enterprise systems.

Advanced Cloud Environments

This NIC supports advanced virtualization features including SR-IOV and virtual switching. It allows efficient distribution of network resources across virtual machines. This improves performance isolation and scalability. It is ideal for cloud and enterprise virtualization platforms.

SR-IOV For Direct VM Network Access

Single Root I/O Virtualization allows virtual machines to access NIC resources directly. This reduces overhead and improves network performance. It enhances VM efficiency. SR-IOV improves virtualization scalability.

High-Performance Computing

The Nvidia ConnectX-5 NIC is optimized for HPC and AI workloads requiring fast inter-node communication. It supports distributed computing frameworks and parallel processing systems. High bandwidth and low latency improve cluster efficiency. This makes it suitable for AI training and scientific computing.

Storage Networking Acceleration For Enterprise Systems

This network adapter improves storage networking performance by reducing latency and increasing throughput. It supports NVMe over Fabrics and other high-speed storage protocols. This enhances data access speed and system responsiveness. Storage acceleration is critical for enterprise workloads.

NVMe Over Fabrics Performance

NVMe over Fabrics enables high-speed storage communication across networks. This NIC enhances NVMe performance significantly. It reduces storage access latency. Optimized storage networking improves efficiency.

Reduced Power Consumption Under Load

The NIC optimizes power usage based on workload demand. This reduces unnecessary energy consumption. It improves data center efficiency. Lower power usage reduces operational costs. Efficient power design reduces heat output in server racks. This improves cooling efficiency. It enhances system stability. Thermal efficiency is critical in dense deployments.

Tall Bracket Design For Standard Server

The tall bracket form factor ensures compatibility with standard enterprise server chassis. It provides secure mounting and stable physical installation. This makes it suitable for rack-mounted systems in data centers. The design ensures durability and proper airflow alignment.

Enterprise Grade Reliability And Stability

The Nvidia ConnectX-5 NIC is designed for continuous operation in enterprise environments. It provides stable performance under heavy workloads. Advanced error handling and hardware reliability features ensure consistent operation. This makes it suitable for mission-critical systems.

Continuous 24/7 Operation Capability

This NIC is built for uninterrupted operation in enterprise data centers. It maintains stability under continuous workloads. It reduces downtime risks. Continuous operation is essential for business systems. The bracket design aligns with server airflow systems. This helps maintain optimal operating temperatures. It improves hardware longevity. Efficient cooling is important for data centers.

Reliable Performance In Mission Critical Systems

Mission-critical applications require stable and predictable networking. This NIC ensures consistent performance under stress. It enhances system dependability. Reliability is essential for enterprise infrastructure.