NVIDIA Mellanox ConnectX-6 MCX631105AC-GDAT

The NVIDIA Mellanox ConnectX-6 Lx MCX631105AC-GDAT is the security-hardened member of the MCX631105 HHHL family, combining Secure Boot firmware protection with inline IPsec/TLS crypto offload on a single-port 50GbE adapter. Built on the ConnectX-6 Lx ASIC (MT28942A0-YCCF-AE) and connected via PCIe 4.0 x8, it delivers a 50Gb/s QSFP28 port with hardware-accelerated RDMA over Converged Ethernet (RoCE v2). Secure Boot validates firmware authenticity at every power-on, preventing execution of unauthorized or tampered code, while the onboard crypto engine encrypts and decrypts network traffic in hardware, eliminating the CPU overhead of software-based IPsec/TLS. Paired with ASAP² virtual switching offload and SR-IOV, the MCX631105AC-GDAT is designed for regulated industries, government, and security-conscious cloud operators that need verifiable firmware integrity and line-rate encrypted networking in a compact, power-efficient package.