MCX515A-CCAT

Key Advantages of the ConnectX-5 MCX515A-CCAT Network Card

The ConnectX-5 MCX515A-CCAT establishes a formidable foundation for modern data centers, delivering uncompromising 100GbE connectivity through a precision-engineered QSFP28 interface. When you secure the transceiver into the port, the firm, tactile click confirms a solid physical connection, preparing your infrastructure for high-speed server, storage, and intensive AI workloads. Operating exclusively as a pure Ethernet (EN) adapter—purpose-built without InfiniBand protocol support—this card guarantees that network architects can deploy it with absolute certainty in standard Ethernet environments, preventing costly procurement mismatches and ensuring exact architectural alignment.

Built upon the highly proven NVIDIA ConnectX-5 silicon architecture, this adapter fundamentally transforms how data moves across your compute clusters. It leverages a standard PCIe 3.0 x16 interface, which must be installed in a complete, uncompromised x16 slot to unlock its maximum potential. When properly seated, the heavy-gauge, full-height metal bracket ensures rigid physical stability within enterprise server chassis. Simultaneously, the PCIe bus provides a massive 128 Gb/s of available host bandwidth. This critical specification eliminates internal chokepoints, ensuring the 100GbE port operates at full line rate without performance degradation, even during peak traffic spikes.

Core performance metrics and hardware offload capabilities defining this adapter include:

• Ultra-Low Latency: Achieves an exceptional 750ns latency profile, which is absolutely crucial for time-sensitive applications and rapid data retrieval.

• Massive Message Rate: Processes an astonishing 200 Mpps (million packets per second), easily handling dense, high-volume traffic generated by modern microservices.

• Hardware Offloads: Native support for RDMA, RoCE, and SR-IOV significantly reduces host CPU overhead, freeing valuable compute resources for your primary applications and improving overall system efficiency.

Competitive Advantages of the MCX515A-CCAT 100GbE Adapter

What distinguishes the MCX515A-CCAT is its capacity to deliver 100GbE bandwidth, offering up to 10× the performance of traditional 10GbE adapters and significantly reducing network bottlenecks. This component acts not merely as a conduit for data, but as an intelligent processing engine engineered for AI clusters, NVMe storage fabrics, and complex cloud infrastructures.

Advanced Virtualization and Network Offloading

Compared with standard Ethernet NICs, it provides lower latency and higher message rates tailored for multi-tenant cloud environments. The card supports up to 512 Virtual Functions (VFs) through Single Root I/O Virtualization (SR-IOV). It integrates ASAP² (Accelerated Switching and Packet Processing) technology to offload Open vSwitch (OVS) operations directly to the network silicon. By handling VXLAN, NVGRE, and GENEVE tunnel encapsulations at the hardware level, it drastically lowers host CPU utilization and maximizes virtual machine density per server node.

Hardware-Level Storage Acceleration

Storage architects will benefit immensely from its advanced storage acceleration technologies, including native NVMe over Fabrics (NVMe-oF) target and initiator offloads. Combined with T10-DIF signature handover technology, the adapter ensures end-to-end data integrity. It provides the extreme IOPS and deterministic performance required by modern all-flash arrays and high-performance storage targets, significantly reducing storage access times.

Broad Ecosystem Compatibility and Deployment

NVIDIA ConnectX-5 technology ensures enterprise-class reliability, scalability, and long-term deployment flexibility. The MCX515A-CCAT offers immediate and reliable interoperability with NVIDIA Spectrum series switches and standard 100GbE Ethernet infrastructure. Whether you are plugging in QSFP28 optical modules (SR4/LR4), Active Optical Cables (AOC), or Direct Attach Copper (DAC) cables, the physical link negotiation is rapid and stable. This makes it the perfect fit for demanding deployment scenarios, including East-West network architectures in HPC and AI nodes, High-Frequency Trading (HFT) platforms requiring microsecond precision, bare-metal compute servers, and Hyper-Converged Infrastructure (HCI).

Why Choose Telefly as Your Infrastructure & GPU Supplier

TELEFLY is a professional supplier of AI and data center infrastructure solutions headquartered in Shenzhen, with a Hong Kong office and an in-house server testing and repair facility. Before any ConnectX-5 adapter or component leaves our warehouse, it undergoes rigorous physical and functional inspection. You can trust the pristine condition of the PCB, the flawless gold plating on the PCIe edge connectors, and the thermal integrity of the mounted heatsink. We provide genuine and fully tested GPUs, servers, switches, network adapters, optical modules, and storage products.

With ready inventory, global shipping capabilities, professional technical support, and comprehensive after-sales service, TELEFLY delivers reliable one-stop solutions for AI, HPC, cloud computing, and enterprise data center deployments worldwide. Our global logistics network ensures that whether you are upgrading a single rack or deploying a massive AI cluster across multiple facilities, your critical components arrive securely packaged and strictly on schedule.