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MCX516A-CDAT

Network Adapters
October 22, 2025
Category Connection: Network Adapters
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Tags:
#network card #Network Adapters #network adapter
Brief: Discover the Mellanox MCX516A-CDAT 10/25GbE Dual-port SFP28 Network Interface Card, featuring PCIe4.0 X16 and 25GbE max speed. Ideal for data centers, HPC clusters, and low-latency trading systems, this card supports RDMA, RoCEv2, and SR-IOV virtualization with ultra-low latency.
Related Product Features:
  • Dual-port SFP28 interface supporting 25GbE, backward compatible with 10GbE/1GbE.
  • PCIe 4.0 x16 bus type, compatible with Gen2/Gen1 for versatile connectivity.
  • Ultra-low latency of 750ns, perfect for high-performance computing.
  • Supports RDMA, RoCEv2, and SR-IOV virtualization for efficient data transfer.
  • Fanless passive cooling design, requiring chassis airflow for optimal performance.
  • Compatible with passive copper cables, fiber optics, and active ESD-protected cables.
  • Message rate up to 200Mpps, with 197Mpps achievable using DPDK.
  • Wide OS compatibility including RHEL/CentOS, Windows, FreeBSD, VMware, and OFED/WinOF-2.
Faqs:
  • What is the maximum speed supported by the MCX516A-CDAT?
    The MCX516A-CDAT supports a maximum speed of 25GbE, with backward compatibility for 10GbE and 1GbE.
  • Does this NIC support virtualization?
    Yes, it supports SR-IOV virtualization along with RDMA and RoCEv2 for efficient data transfer in virtualized environments.
  • What operating systems are compatible with this network interface card?
    The card is compatible with RHEL/CentOS, Windows, FreeBSD, VMware, and supports OFED/WinOF-2 drivers.
  • What type of cooling does the MCX516A-CDAT use?
    It features a fanless passive cooling design, requiring adequate chassis airflow for optimal heat dissipation.
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