NVIDIA Mellanox ConnectX-5 EN MCX512A-ADAT: Dual-Port 100GbE Ethernet Adapter Card
Product Overview
The NVIDIA Mellanox ConnectX-5 EN MCX512A-ADAT represents a premium dual-port 100GbE network adapter designed for high-performance data center and enterprise environments. This advanced network card delivers exceptional bandwidth, ultra-low latency, and comprehensive hardware offload capabilities, making it ideal for cloud computing, storage systems, and telecommunications applications. Featuring PCIe 3.0 x16 interface and support for multiple Ethernet speeds, this NIC card provides a robust solution for demanding network infrastructure requirements.
Key Characteristics
- Dual QSFP28 ports supporting 100/50/40/25/10/1 GbE speeds
- PCI Express 3.0 x16 host interface with full bandwidth utilization
- Hardware offloads for overlay networks including VXLAN, NVGRE, and GENEVE
- RDMA over Converged Ethernet (RoCE) support for low-latency applications
- SR-IOV virtualization with up to 512 virtual functions
Advanced Technologies
This network adapter incorporates several innovative technologies that significantly enhance performance and efficiency:
- ASAP² Technology: Accelerated Switching and Packet Processing for efficient vSwitch offloading
- RoCE v2: RDMA over Converged Ethernet enabling low-latency data transfer
- Hardware Offload Engines: Dedicated processors for overlay network encapsulation/decapsulation
- Embedded PCIe Switch: Advanced switching capabilities for host chaining configurations
- T10-DIF Signature Handover: Hardware-assisted data integrity verification for storage applications
Operational Framework
The ConnectX-5 EN network card operates through an advanced architecture that offloads critical network processing tasks from host CPUs. The adapter features dedicated hardware engines for protocol processing, traffic management, and virtualization functions. For overlay networks, the NIC card performs encapsulation and decapsulation of VXLAN, NVGRE, and GENEVE packets at line rate, maintaining optimal performance while enabling network scalability. The RoCE implementation leverages advanced congestion control mechanisms to provide reliable low-latency RDMA services over standard Ethernet infrastructure.
Application Environments
Cloud Data Centers
Ideal for public and private cloud deployments requiring high-bandwidth connectivity and virtualization support.
High-Performance Computing
Perfect for HPC environments demanding low latency and high message rates.
Storage Systems
Enables high-performance storage access through NVMe over Fabrics and RoCE technologies.
Technical Specifications
| Specification | Details |
|---|
| Model Number | MCX512A-ADAT |
| Form Factor | PCIe HHHL (Half Height Half Length) |
| Data Rates | 100/50/40/25/10/1 GbE per port |
| Host Interface | PCIe 3.0 x16 |
| Port Configuration | 2 x QSFP28 |
| Virtualization | SR-IOV with 512 VFs |
| Latency | As low as 750 nanoseconds |
| OS Compatibility | Linux, Windows, VMware, FreeBSD |
Competitive Advantages
- Multi-Speed Flexibility: Six different Ethernet speeds supported on each port for deployment versatility
- Advanced Offload Capabilities: Significant CPU utilization reduction through hardware acceleration
- Low Latency Performance: Industry-leading latency as low as 750ns for time-sensitive applications
- Enhanced Virtualization: SR-IOV technology with extensive virtual function support for multi-tenant environments
- Future-Proof Design: Compatibility with emerging network protocols and overlay technologies
Service & Support
We provide comprehensive support services including full product warranty, technical consultation, and integration assistance. Our team offers 24/7 customer support to ensure seamless deployment and operation. With extensive inventory and efficient logistics network, we guarantee timely delivery and responsive technical support throughout the product lifecycle.
Frequently Asked Questions
Q: How does this network card compare to ConnectX-6 adapters?
A: While ConnectX-6 offers higher port speeds up to 200Gb/s, this ConnectX-5 model provides excellent 100GbE performance with comprehensive feature set for most enterprise applications.
Q: Can both ports operate at different speeds simultaneously?
A: Yes, each port can independently operate at different speeds (100/50/40/25/10/1GbE) based on connected equipment and configuration.
Q: Does this NIC card support RDMA over Ethernet?
A: Yes, the adapter fully supports RoCE (RDMA over Converged Ethernet) for low-latency applications and storage access.
Q: What virtualization features are available?
A: The card supports SR-IOV with up to 512 virtual functions, enabling efficient hardware-based virtualization for cloud environments.
Installation & Compatibility Notes
- Ensure adequate cooling for optimal performance in high-throughput applications
- Verify PCIe slot compatibility (x16 mechanical and electrical interface required)
- Use qualified QSFP28 optical transceivers or DAC cables for reliable 100GbE operation
- Update to latest firmware and drivers for full feature availability and performance optimization
- Follow ESD precautions during handling and installation procedures
Company Profile
With over a decade of industry experience, we operate extensive manufacturing facilities supported by a highly skilled technical team. As an authorized distributor of leading networking brands including NVIDIA Mellanox, Ruckus, Aruba, and Extreme Networks, we provide authentic products with comprehensive warranty coverage.
Our inventory management system maintains over 10 million units, encompassing network switches, adapter cards, wireless solutions, and connectivity products. We implement rigorous quality control measures and offer competitive pricing alongside exceptional technical support services. Our global distribution network ensures reliable delivery to customers worldwide.
