MCX516A-CDAT - Mellanox Network Cards
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MCX516A-CDAT
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MCX516A-CDAT Overview
ConnectX-5 Ex EN network interface card, 100GbE dual-port QSFP28, PCIe4.0 x16, tall bracket MCX516A-CDAT
Overview
MCX516A-CDAT Overview
ConnectX-5 Ex EN network interface card, 100GbE dual-port QSFP28, PCIe4.0 x16, tall bracket MCX516A-CDAT
ConnectX-5 Ex EN network interface card, 100GbE dual-port QSFP28, PCIe4.0 x16, tall bracket
ConnectX-5 delivers high bandwidth, low latency, and high computation efficiency for high performance, data intensive and scalable compute and storage platforms.
Quick Spec
| Model | MCX516A-CDAT |
| Protocol Support | Ethernet: 100GBASE-CR4, 100GBASE-KR4, 100GBASE-SR4, 56GBASE-R4, 50G Ethernet Consortium, 40GBASE-CR4, 40GBASE-SR4, 40GBASE-LR4, 40GBASE-ER4, 25GBASE-CR/CR-S, 25GBASE-SR, 25GBASE-LR, 25G Ethernet Consortium, 10GBASE-SR, 10GBASE-LR, 10GBASE-ER, 10GBASE-CX4, SGMII, 1000BASE-X |
| Power and Airflow | Voltage: 12V |
| Safety | CB / cTUVus / CE |
| EMC | CE / FCC / VCCI / ICES / RCM |
| RoHS | RoHS-compliant |
100GbE Dual-Port QSFP28 PCIe4.0 x16 Tall Bracket ROHS R6
- Manufacturer: Mellanox Technologies Ltd
- Manufacturer Part Number: MCX516A-CDAT
- Manufacturer Website Address: http://www.mellanox.com
- Brand Name: Mellanox
- Product Line: ConnectX-5
- Product Name: ConnectX-5 Single/Dual-Port Adapter Supporting 100Gb/s Ethernet
- Product Type: Infiniband Host Bus Adapter
- Wired
- PCI Express Fiber
- 100000 Mbit/s
- Internal
Summary Description
Mellanox Technologies MCX516A-CDAT, Internal, Wired, PCI Express, Fiber, 100000 Mbit/s
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Specification
MCX516A-CDAT Specification
| MCX516A-CDAT Specification | |
| Model | MCX516A-CDAT |
| Protocol Support | Ethernet: 100GBASE-CR4, 100GBASE-KR4, 100GBASE-SR4, 56GBASE-R4, 50G Ethernet Consortium, 40GBASE-CR4, 40GBASE-SR4, 40GBASE-LR4, 40GBASE-ER4, 25GBASE-CR/CR-S, 25GBASE-SR, 25GBASE-LR, 25G Ethernet Consortium, 10GBASE-SR, 10GBASE-LR, 10GBASE-ER, 10GBASE-CX4, SGMII, 1000BASE-X |
| Power and Airflow | Voltage: 12V |
| Safety | CB / cTUVus / CE |
| EMC | CE / FCC / VCCI / ICES / RCM |
| RoHS | RoHS-compliant |
Frequently Asked Questions
What are the primary performance advantages of the Mellanox MCX516A-CDAT in a high-speed data center? +
The MCX516A-CDAT delivers exceptional 100GbE throughput via dual QSFP28 ports, making it ideal for high-bandwidth applications. By leveraging PCIe 4.0 x16 connectivity, this card significantly reduces latency and optimizes data movement, ensuring your server infrastructure maintains peak performance during heavy traffic loads and complex computational tasks.
Is the MCX516A-CDAT compatible with older PCIe 3.0 server slots? +
Yes, this ConnectX-5 Ex adapter is backward compatible with PCIe 3.0 interfaces. While the card is optimized for PCIe 4.0 environments to provide maximum throughput, it will negotiate down to operate in PCIe 3.0 slots, allowing you to integrate this advanced networking hardware into existing server generations while still benefiting from 100GbE connectivity.
Which specific use cases are best suited for the ConnectX-5 Ex EN dual-port adapter? +
This NIC is engineered for high-performance computing, cloud-native deployments, and large-scale virtualization environments. Its robust architecture excels in scenarios requiring high-speed message passing, such as storage area networking (SAN), database acceleration, and deep learning clusters, where low latency and consistent packet processing are mission-critical requirements for operational efficiency.
Does the MCX516A-CDAT ship with a specific bracket size? +
The MCX516A-CDAT model comes equipped with a tall bracket, which is the standard size for most rackmount server chassis and tower servers. This physical configuration ensures proper alignment and secure mounting within your server’s PCIe expansion slots, providing the stability needed for reliable high-speed data transmission in enterprise data center racks.
How does the dual-port QSFP28 design improve network redundancy? +
The dual-port QSFP28 configuration allows for multi-path networking, enabling administrators to implement link aggregation or high-availability failover groups. By connecting both ports to separate switches or fabrics, you can protect your network infrastructure against single-link failures, thereby increasing overall system uptime and maintaining continuous data access for critical business services.
What management features are supported by the ConnectX-5 Ex series? +
The Mellanox ConnectX-5 series supports advanced management features, including comprehensive offload capabilities for overlay networks like VXLAN and NVGRE. These features shift processing tasks from the host CPU to the NIC, allowing for efficient management of virtualized traffic and improved network performance without sacrificing the resources of the underlying server hardware.
Does the MCX516A-CDAT require specific driver configurations for optimal reliability? +
To ensure maximum reliability and performance, we recommend using the latest Mellanox OFED (OpenFabrics Enterprise Distribution) drivers compatible with your operating system. These drivers are optimized to take full advantage of the hardware offload engines and PCIe 4.0 capabilities, minimizing CPU overhead and ensuring the NIC functions correctly under high stress and varying network load conditions.
Can this Mellanox NIC be used in a virtualized VMware or Linux environment? +
The MCX516A-CDAT offers extensive driver support across major enterprise operating systems, including VMware ESXi, various Linux distributions, and Windows Server. Its architecture is specifically designed for virtualization, offering hardware-level support for SR-IOV (Single Root I/O Virtualization), which allows virtual machines to access the network interface directly for near-native throughput performance.
How can I obtain a bulk quote for multiple MCX516A-CDAT units for my upcoming data center refresh? +
If you are planning a large-scale deployment and require multiple units, our sales team is ready to assist. Please contact us directly through the BuyRouterSwitch.com inquiry form with your specific quantity requirements. We specialize in providing competitive pricing packages for enterprise-level volume orders and will ensure you receive a tailored quote to meet your project budget.
Why should I source my Mellanox hardware from BuyRouterSwitch.com? +
BuyRouterSwitch.com provides procurement professionals with a secure and reliable platform for sourcing enterprise-grade networking equipment. We focus on providing authentic, high-quality hardware that meets rigorous industry standards. By choosing us for your networking needs, you gain access to our extensive inventory and expert procurement support, ensuring your project remains on schedule with genuine, reliable components.
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