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 specifications of the Mellanox MCX516A-CDAT? +
The MCX516A-CDAT is a high-performance ConnectX-5 Ex EN adapter featuring dual-port 100GbE connectivity via QSFP28 interfaces. It leverages a PCIe 4.0 x16 host interface, providing massive throughput and reduced latency for demanding data center applications, high-performance computing, and storage networking environments.
Does the MCX516A-CDAT support standard server chassis configurations? +
Yes, this card ships with a pre-installed tall bracket, making it ideal for standard 2U or larger rack-mount server chassis. Please ensure your server has an available PCIe 4.0 x16 slot to take full advantage of the adapter's maximum bandwidth capabilities.
How does the PCIe 4.0 interface improve upon previous generations for this NIC? +
The PCIe 4.0 x16 interface provides double the bandwidth compared to PCIe 3.0, effectively removing bottlenecks for I/O-intensive workloads. By utilizing this generation, the MCX516A-CDAT ensures that your high-speed 100GbE traffic can move directly to the CPU without being limited by the host bus speed.
What type of optical transceivers or cables are compatible with the MCX516A-CDAT? +
The adapter features two QSFP28 ports, which support a wide variety of 100GbE transceivers, including SR4, LR4, and PSM4 modules, as well as Direct Attach Copper (DAC) cables and Active Optical Cables (AOC). Always verify your cable reach and transceiver specifications to match your specific switch-to-server topography.
Is the MCX516A-CDAT suitable for virtualized cloud environments? +
Absolutely. The ConnectX-5 Ex series is designed for modern cloud data centers, offering advanced hardware offloads such as SR-IOV and OVS offloading. These features significantly reduce CPU overhead when managing high-density virtual machine or container traffic, improving overall infrastructure efficiency.
What management features does the Mellanox ConnectX-5 platform offer? +
The card supports standard Mellanox management tools and drivers, ensuring seamless integration with existing network management frameworks. It includes support for advanced traffic steering, quality of service (QoS) configurations, and diagnostic capabilities, allowing IT administrators to monitor and optimize network performance effectively.
Can I use the MCX516A-CDAT for storage-intensive workloads like NVMe-over-Fabrics? +
Yes, this card is highly optimized for NVMe-over-Fabrics (NVMe-oF) deployments. The high throughput of 100GbE paired with low-latency hardware offloads allows this adapter to serve as a critical component in building high-speed, all-flash storage arrays that require peak IOPS and minimal access times.
How do I ensure optimal cooling for this dual-port 100GbE adapter? +
To maintain reliability, the MCX516A-CDAT should be installed in a chassis with adequate airflow, as high-speed 100GbE interfaces generate significant heat during sustained maximum traffic loads. Ensure your server fans are configured correctly and that the PCIe slot area remains unobstructed to facilitate proper thermal dissipation.
How can I obtain a bulk quote for multiple MCX516A-CDAT units? +
For large-scale enterprise deployments requiring multiple units, please contact the BuyRouterSwitch.com sales team directly. Our specialists can provide competitive bulk pricing, help verify stock availability for your project timeline, and assist with consolidated shipping arrangements for your purchase.
Why should I choose BuyRouterSwitch.com for Mellanox networking hardware? +
BuyRouterSwitch.com is a trusted source for authentic enterprise-grade networking components. We prioritize providing our customers with genuine products sourced through reliable channels, ensuring that your critical infrastructure operates on certified, high-quality hardware that meets original manufacturer standards for performance and security.
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