NVIDIA Mellanox ConnectX-6 MCX621102AN-ADAT

The NVIDIA Mellanox ConnectX-6 Lx MCX621102AN-ADAT is a dual-port 25GbE SFP28 network adapter built on the ConnectX-6 Lx silicon (MT28942A0-YCCF-AE controller), connecting via a PCIe 4.0 x8 host interface. As NVIDIA's power- and cost-efficient ConnectX-6 variant, it delivers hardware-accelerated RoCE v2 RDMA, SR-IOV virtualization, and NVMe-oF storage acceleration in a compact half-height, half-length form factor suited to dense server deployments. Stateless CPU offloads, jumbo frame support, and hardware QoS reduce host CPU utilization while sustaining line-rate 25GbE throughput, and NC-SI sideband support enables BMC-based out-of-band management independent of the host OS. This baseline SKU omits Secure Boot and inline crypto acceleration, making it a straightforward, cost-optimized choice for general-purpose cloud, virtualization, and storage-networking deployments that need reliable 25GbE Ethernet connectivity without the added cost of firmware attestation or hardware encryption offload.