MCX516A-CCAT ConnectX-5 100GbE Dual-Port QSFP28 NIC
MCX516A-CCAT ConnectX-5 100GbE Dual-Port QSFP28 NIC is a high-performance Ethernet network adapter designed for enterprise servers, AI computing infrastructure, GPU clusters, cloud platforms, and modern data center networks. Based on NVIDIA Mellanox ConnectX-5 EN technology, the adapter provides dual QSFP28 network ports with Ethernet speeds of up to 100GbE per port.
With a PCIe 3.0 x16 host interface and flexible Ethernet speed support, the MCX516A-CCAT ConnectX-5 100GbE Dual-Port QSFP28 NIC is suitable for server environments requiring high bandwidth, low latency, and reliable data transmission.
Key Features
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NVIDIA Mellanox ConnectX-5 EN architecture
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Model / Part Number: MCX516A-CCAT
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Dual-port QSFP28 network interface
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Up to 100GbE Ethernet per port
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Supports 1/10/25/40/50/100GbE data rates
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PCIe 3.0 x16 host interface
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Suitable for AI servers and GPU computing systems
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Designed for enterprise and data center networking
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Supports high-speed storage and virtualization environments
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Tested hardware supply and bulk procurement support
The MCX516A-CCAT ConnectX-5 100GbE Dual-Port QSFP28 NIC provides a practical upgrade path for data centers moving from traditional 10GbE, 25GbE, or 40GbE networks to higher-bandwidth 100GbE infrastructure.
Product Specifications
| Item | Specification |
|---|---|
| Brand | NVIDIA Mellanox |
| Model | MCX516A-CCAT |
| Series | ConnectX-5 EN |
| Product Type | Ethernet Network Interface Card |
| Network Speed | Up to 100GbE per port |
| Number of Ports | 2 |
| Port Type | Dual QSFP28 |
| Supported Speeds | 1/10/25/40/50/100GbE |
| Host Interface | PCIe 3.0 x16 |
| Form Factor | Low Profile |
| Application | AI Server, GPU Server, Data Center, Enterprise Server |
| Typical Use | HPC, Cloud Computing, Storage Networking, Virtualization |
AI Server and Data Center Applications
The MCX516A-CCAT ConnectX-5 100GbE Dual-Port QSFP28 NIC can be deployed in AI training servers, GPU computing nodes, enterprise server clusters, storage systems, private clouds, and high-performance computing environments.
Its dual QSFP28 design gives system integrators and data center operators additional networking flexibility for redundant network connections, multi-network architectures, storage traffic, and high-speed server communication.
For AI infrastructure deployments, 100GbE connectivity can help accelerate data movement between GPU servers, storage systems, and other compute nodes where large datasets need to move efficiently across the network.
Server and Network Upgrade Applications
The MCX516A-CCAT ConnectX-5 100GbE Dual-Port QSFP28 NIC is also suitable for enterprise network upgrades where existing 10GbE, 25GbE, or 40GbE infrastructure needs to migrate toward 100GbE networking.
Typical applications include:
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AI training and inference servers
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GPU server clusters
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High-performance computing systems
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Enterprise virtualization platforms
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Private and hybrid cloud infrastructure
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High-speed storage networks
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Data center network expansion
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Server-to-server high-bandwidth connectivity
About Us
Important PCIe Bandwidth Consideration
MCX516A-CCAT uses a PCIe 3.0 x16 host interface. Although the adapter provides two network ports capable of operating at up to 100GbE each, the PCIe 3.0 x16 host interface has lower aggregate bandwidth than 200Gb/s.
For projects requiring sustained full-bandwidth operation across both 100GbE ports simultaneously, server architecture and PCIe bandwidth requirements should therefore be reviewed before deployment.
CubeCore can assist customers with model verification and server configuration matching before bulk procurement.
FAQ
Q: What is MCX516A-CCAT?
A: MCX516A-CCAT is an NVIDIA Mellanox ConnectX-5 EN Ethernet network interface card featuring dual QSFP28 ports and support for Ethernet speeds up to 100GbE per port.
Q: How many network ports does MCX516A-CCAT have?
A: It features two QSFP28 network ports.
Q: Is MCX516A-CCAT suitable for AI servers?
A: Yes. It is suitable for AI servers, GPU computing platforms, HPC systems, enterprise storage networks, and other high-bandwidth data center environments.
Q: What PCIe interface does MCX516A-CCAT use?
A: The adapter uses a PCIe 3.0 x16 host interface.
Q: Can both ports run at 100GbE?
A: Each network port supports up to 100GbE. However, because the adapter uses PCIe 3.0 x16, the host interface cannot provide a full 200Gb/s aggregate bandwidth when both ports transmit at maximum speed simultaneously.
Q: Can CubeCore supply MCX516A-CCAT in bulk?
A: Yes. CubeCore supports tested hardware supply, bulk orders, configuration verification, project-based procurement, and global delivery for enterprise and data center customers.
