NVIDIA Mellanox ConnectX-6 MCX631102AS-ADAT
ConnectX-6 Dx EN, Dual-Port 25GbE SFP28, PCIe 4.0 x8, Secure Boot
Host Interface
PCIe 4.0 x8
Port Count
2-port (Dual-port)
Port Speed & Connector Type
25GbE, SFP28 (jumbo frame support)
RDMA / Network Protocol
Ethernet, RoCE v2 (RDMA over Converged Ethernet)
Secure Boot
Supported (✔)
Product Description
The NVIDIA Mellanox ConnectX-6 Dx EN network adapter MCX631102AS-ADAT is a dual-port 25GbE smart network interface card built on the ConnectX-6 Dx ASIC, delivering line-rate Ethernet connectivity with hardware-accelerated RDMA over Converged Ethernet (RoCE v2) for latency-sensitive AI, HPC and cloud workloads. Connecting via a PCIe 4.0 x8 host interface and dual SFP28 cages, the card combines advanced hardware offloads — including CPU offload, quality-of-service (QoS) traffic shaping, jumbo frame support and NVMe-oF storage acceleration — with SR-IOV network virtualization for dense multi-tenant deployments. This variant adds hardware Secure Boot to authenticate the firmware and BIOS boot chain against tampering, giving IT and cloud operators an added layer of platform integrity without the overhead of inline crypto offload. Sideband manageability is provided via NC-SI. Built on the field-proven MT28942A0-YCCF-AE controller, the MCX631102AS-ADAT gives distributors and system integrators a flexible, high-performance 25GbE building block for modern data center, cloud and AI infrastructure deployments.