NVIDIA Mellanox ConnectX-6 MCX631432AS-ADAI OCP3.0
ConnectX-6 Lx EN 2-port 25GbE OCP 3.0 Adapter with Secure Boot
Product Family
ConnectX-6 Lx EN (MCX631432AS-ADAI OCP3.0)
Form Factor
OCP 3.0 Small Form Factor (SFF)
Host Interface
PCIe 4.0 x8
Port Count
2-port
Port Speed & Connector Type
25GbE over SFP28
Product Description
The NVIDIA Mellanox ConnectX-6 Lx EN MCX631432AS-ADAI is a dual-port 25GbE OCP 3.0 SmartNIC using the same ConnectX-6 Lx MT28942A0-YCCF-AE controller, PCIe 4.0 x8 host interface and dual SFP28 connectivity as the MCX631432AS-ADAB, distinguished by its NVIDIA ordering suffix (SI0 versus SB1), which typically denotes a distinct bracket/mechanical or channel packaging option rather than a functional change. It delivers line-rate 25 Gigabit Ethernet with RoCE v2 RDMA offload for low-latency, CPU-efficient data movement, and installs tool-lessly into OCP 3.0-compliant server bays for streamlined, hot-swappable fleet deployment. Hardware-enforced Secure Boot authenticates the adapter's firmware at every boot, guarding against unauthorized firmware execution. As a power- and cost-optimized member of the ConnectX-6 family, the MCX631432AS-ADAI is targeted at high-volume cloud, edge and enterprise server deployments that need dependable 25GbE RDMA connectivity with verified firmware integrity, and where OEM/channel packaging or bracket options are a purchasing consideration.