NVIDIA Mellanox ConnectX-6 MCX623439MC-CDAB OCP3.0

The NVIDIA Mellanox ConnectX-6 Dx MCX623439MC-CDAB is the most fully-featured single-port adapter in this ConnectX-6 Dx OCP 3.0 lineup, combining 100Gb/s Ethernet connectivity with a complete set of security and multi-host capabilities. It connects to the host through PCIe 4.0 x16 and delivers up to 100Gb/s over a QSFP56 port, supporting RDMA over Converged Ethernet (RoCE v2) for low-latency, CPU-efficient data movement. Secure Boot authenticates firmware on every power cycle, while an onboard Crypto engine performs inline IPsec/TLS encryption and decryption in hardware, protecting data in motion without impacting throughput. Multi-Host and Socket Direct technology let a single MCX623439MC-CDAB serve up to four independent host servers with direct, NUMA-aware PCIe connectivity, maximizing rack density despite the single physical port. Packaged in a tool-less, hot-swappable OCP 3.0 bracket, the MCX623439MC-CDAB is designed for security-conscious hyperscale and enterprise deployments that need encrypted, verified, multi-host-capable 100GbE connectivity in a compact footprint.