NVIDIA Mellanox ConnectX-6 MCX623436MS-CDAB OCP3.0
ConnectX-6 Dx EN dual-port 100GbE OCP 3.0 adapter with Secure Boot, Multi-Host & Socket Direct
Host Interface
PCIe 4.0 x16
Port Count
2-port
Port Speed & Connector Type
100Gb/s per port, QSFP56 connector
RDMA / Network Protocol
RoCE v2 (RDMA over Converged Ethernet)
Secure Boot
Supported — authenticated firmware boot chain
Product Description
The NVIDIA Mellanox ConnectX-6 Dx MCX623436MS-CDAB is a dual-port 100 Gigabit Ethernet OCP 3.0 Small Form Factor adapter designed for hyperscale cloud and enterprise infrastructure. It connects via PCIe 4.0 x16 and provides up to 100Gb/s per port over QSFP56 connectors, with RDMA over Converged Ethernet (RoCE v2) for low-latency, CPU-efficient data movement. Hardware offload for Open vSwitch (ASAP²) accelerates virtual networking, and Secure Boot authenticates the adapter's firmware at every power cycle to prevent unauthorized code from running. Multi-Host and Socket Direct technology let one MCX623436MS-CDAB serve up to four independent host servers with direct, NUMA-aware PCIe connectivity, boosting rack-level network density while reducing the number of NICs required. Delivered in a tool-less, hot-swappable OCP 3.0 bracket, the card targets AI, cloud and high-throughput storage workloads that need dependable, high-speed Ethernet connectivity across shared infrastructure.