MCX516A-CDAT, Mellanox ConnectX-5 Ex Network Interface Card, 100GbE Dual QSFP28/PCIe4.0 x16/Tall Bracket

  • Brand: Mellanox
  • Model: MCX516A-CDAT
  • In Stock
    • United States
    • United Kingdom
    • Germany
    • United Arab Emirates
    • Singapore
    • India
    • Hong Kong
$716.00
  • 100% Genuine
    100% Genuine
    Original, factory-verified
    3-Year Warranty
    3-Year Warranty
    Extended, enterprise-grade
    23 Years Expertise
    23 Years Expertise
    Proven, deployment-focused
  • Condition
    • Original New
    Express Shipping to United States Get Shipping Estimate
    Estimated shipping time: 2–6 business days via DHL, FedEx, UPS and more
    expert
    Certified Expertise Builds Trust
    CCIE · JNCIE · NSE7 · ACDX · HPE Master ASE · Dell Server/AI Expert
    • Faster Delivery, Globally Ready

      Faster Delivery, Globally Ready

      20+ years of supply chain expertise for faster multi-stop delivery with smooth customs.

      48H Worldwide Shipping
      10+ Global Warehouses
    • Keep Projects On Time

      Keep Projects On Time

      Reliable availability and real-time shipment visibility to keep every critical IT project on schedule.

    • Leading Global Distributor Since 2002

      Leading Global Distributor
      Since 2002

      A global ICT bridge delivering authentic hardware and trusted service for over 20 years.

        21500+ Enterprise Clients Served200+ Countries & Regions Covered
    • Worry-Free Coverage with RSCare

      Worry-Free Coverage with RSCare

      3-Year warranty for enterprise hardware, including advanced RMA, diagnostics, spare parts support, and OEM service compatibility.

      Cisco SmartNet
      HPE Foundation Care
      Dell ProSupport
      Juniper Care
      Fortinet Support
    • Your Trusted Genuine Source

      Your Trusted Genuine Source

      Authorized partnerships with 30+ brands, including Cisco, HPE, Dell, Juniper, and Fortinet.

      100% Authentic Products
      100,000+ Multi-Brand SKUs Available
    Overview

    Mellanox MCX516A-CDAT Overview

    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

    Table 1 shows the 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

    ConnectX-5 adapter cards are available for PCIe Gen 3.0 and Gen 4.0 servers and provide support for 1, 10, 25, 40, 50 and 100 GbE speeds in stand-up PCIe cards, OCP 2.0, and OCP 3.0 form factors. ConnectX-5 cards also offer advanced Multi-Host and Socket Direct technologies.

    Features
    • ● Tag matching and rendezvous offloads
    • ● Adaptive routing on reliable transport
    • ● Burst buffer offloads for background checkpointing
    • ● NVMe over Fabric offloads
    • ● Backend switch elimination by host chaining
    • ● Embedded PCIe switch
    • ● Enhanced vSwitch/vRouter offloads
    • ● Flexible pipeline
    • ● RoCE for overlay networks
    • ● PCIe Gen 4.0 support
    • ● RoHS compliant
    • ● ODCC compatible
    • ● Various form factors available
    Benefits
    • ● Up to 100Gb/s connectivity per port
    • ● Industry-leading throughput, low latency, low CPU utilization and high message rate
    • ● Innovative rack design for storage and Machine Learning based on Host Chaining technology
    • ● Smart interconnect for x86, Power, Arm, and GPU-based compute & storage platforms
    • ● Advanced storage capabilities including NVMe over Fabric offloads
    • ● Intelligent network adapter supporting flexible pipeline programmability
    • ● Cutting-edge performance in virtualized networks including Network Function Virtualization (NFV)
    • ● Enabler for efficient service chaining capabilities
    • ● Efficient I/O consolidation, lowering data center costs and complexity


    Supported Options

    • Network Ports: 2 x QSFP28 interfaces.
    • PCI Express Interface: PCIe 3.0 x16 for high data transfer rates.
    • Operating Systems: Compatible with a variety of operating systems including Windows, Linux, and VMware.


    Compare to Similar Items

    Model Comparison
    Intel XL710-QDA2 Similar throughput, different manufacturer
    Broadcom BCM957414A4142C Comparable specifications, higher cost
    Chelsio T62100-CR Similar data rate, different feature set


    Get More Information

    Please feel free to check the MCX516A-CDAT datasheet below.

    Do you have any question about the MCX516A-CDAT price?

    Contact us now via Live Chat or [email protected].

    Quality Certifications

    • ISO 14001
    • ISO 9001
    • RoHS
    • REACH
    • CE
    • FCC
    Specification

    Mellanox 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

    Quality Certifications

    Need Help? Technical Experts Available Now.

    • +1-626-655-0998 (USA)
      UTC 15:00-00:00
    • +852-2592-5389 (HK)
      UTC 00:00-09:00
    • +852-2592-5411 (HK)
      UTC 06:00-15:00
    Need Help? Technical Experts Available Now.
    Q&A

    Questions & Answers

    Which accessories are compatible with MCX516A-CDAT?

    Compatible accessories include various QSFP28 cables and transceivers that ensure 100GbE connectivity across different network infrastructures.

    How does MCX516A-CDAT compare to similar products?

    The MCX516A-CDAT is highly competitive, offering advanced features like PCIe4.0 x16, robust dual-port QSFP28 connectivity, and cost-effective performance.

    What kind of bracket comes with MCX516A-CDAT?

    The MCX516A-CDAT comes with a tall bracket, ideal for standard server and workstation configurations.

    Are the products sold on router-switch.com authentic?

    Yes, router-switch.com only sells 100% genuine products from authorized brands. As a multi-brand authorized distributor, all items are sourced through official channels and include valid manufacturer warranties. Customers may verify authorization via brand websites or request certification documents.

    Warranty
    • Your Trusted Global ICT Partner

      Delivering reliable, cross-border fulfillment with 20+ years of expertise, backed by rigorous QC, fast logistics, and worldwide warehousing.
      Global warehousing
      Global warehousing
      10+ hubs positioned for fast international dispatch and stable availability.
      Seamless cross-border
      Seamless cross-border
      QC-verified packing and predictable delivery via FedEx, DHL, UPS.
      Your Trusted Global ICT Partner
    • ICT Tools Hub for Confident Monitoring

      ICT Tools Hub for Confident Monitoring

      Stay informed on product lifecycle status and real-time inventory availability—supporting confident planning, sourcing, and operational execution.
      EOL/EOSL Checker
      Verify product lifecycle status to plan purchases and avoid EOL/EOSL risks.
      Request VIP Inventory Portal Access
      Connect via live chat for VIP access to real-time inventory on priority SKUs.
    • Certified Experts Across Leading Vendors

      Professional guidance for network, security & data center builds, delivered by certified experts with extensive, hands-on deployment experience.
      Multi-vendor engineering
      Multi-vendor engineering
      Certified expertise across Cisco, HPE, Aruba, Dell, Juniper, Huawei and Fortinet.
      Deployment-ready guidance
      Deployment-ready guidance
      Faster, safer rollouts with project-focused engineering guidance.
      Certified Experts Across Leading Vendors

    The Choice of 21,500 +Global Customers

    • Ford
    • Disney
    • Nestle
    • Toyota
    • Walmart
    • Philips
    • Ups
    • Huatt
    • Hsbc
    • Novartis
    • Siemens Healthineers
    • Bt
    • Reference Johnson
    • T
    • Att
    • Lgu
    • Sk Telecom
    • Veerizon
    Industry-Leading Warranty Coverage You Can Trust
    • 100% Low Price Guarantee
      100% Low Price Guarantee
      Router-switch.com offers genuine, high-quality ICT products at competitive wholesale prices—ensuring exceptional value without compromising quality.
    • 100% Quality Assurance
      100% Quality Assurance
      All items are brand new, original, and factory-sealed.
      Upon request, each unit can be fully tested and verified by a Mellanox-certified engineer to ensure perfect working condition before shipment.
    • 100% Money-Back Guarantee
      100% Money-Back Guarantee
      If you are not satisfied with your purchase, you may request an exchange or full refund. Our customer service team will guide you through the return process quickly and smoothly.
      Visit Return Policy page for more information.
    • Free Mellanox Technical Support
      Our Mellanox-certified experts provide free professional support via phone, email, online chat, or remote login—helping you deploy and troubleshoot with confidence.
    • Flexible & Secure Payment and Shipping
      Flexible & Secure Payment and Shipping
      We support multiple secure payment and logistics options, backed by industry-leading verification:
      • Pay by wire transfer.
      • Pay with your paypal.
      • Pay with your Visa credit card.
      • Pay with your Mastercard credit card.
      • Pay with your Discover Card.
      • Pay by American Express.
      More
      • mcafee-secure
      • verisign-secured
      • pci-dss
      • ssl-encryption
      Visit How to Pay page for more information
    Warranty Coverage & RMA Instructions
    • Extended, Worry-Free Warranty Coverage
      Extended, Worry-Free Warranty Coverage
      • Factory New Sealed Enterprise Hardware: 3 Years
      • Factory New Sealed Consumer Devices: 1 Year
      Visit Warranty Policy page for more information
    • How to Get Support
      How to Get Support
      If you encounter issues with products, please reach out to your dedicated sales representative. They will assist with diagnostics, remote troubleshooting, and RMA processing if necessary.
      Visit Contact Us page for more support options.

    Best-Fit Solutions for Your Network

    Deploy DeepSeek-V3/R1: Powerful AI, Low Cost

    Deploy DeepSeek-V3/R1: Powerful AI, Low Cost

    Expert-configured AI solution: Same power, 90% savings—multi-scenario flexibility with Dell/Huawei/Lenovo options.

    AI
    Beyond Bandwidth: The 100G+ Data Center Architecture

    Beyond Bandwidth: The 100G+ Data Center Architecture

    The must-have 100G foundation - AI-ready growth, zero-latency performance

    Data Center
    400G/800G Ethernet Switch: Maxmize Margins via AI-Ready Solutions

    400G/800G Ethernet Switch: Maxmize Margins via AI-Ready Solutions

    High-Profit data center switches from Cisco, Huawei, Mellanox & Juniper.

    Ethernet Switch