NVIDIA Mellanox ConnectX-6 MCX623435AN-CDAB OCP3.0
ConnectX-6 Dx EN single-port 100GbE OCP 3.0 adapter
Host Interface
PCIe 4.0 x16
Port Count
1-port
Port Speed & Connector Type
100Gb/s, QSFP56 connector
RDMA / Network Protocol
RoCE v2 (RDMA over Converged Ethernet)
Form Factor
OCP 3.0 Small Form Factor (SFF), tall/short bracket
Product Description
The NVIDIA Mellanox ConnectX-6 Dx MCX623435AN-CDAB is a single-port 100 Gigabit Ethernet OCP 3.0 Small Form Factor adapter designed for straightforward, cost-effective high-speed connectivity in enterprise and cloud servers. It connects to the host through a PCIe 4.0 x16 interface and delivers up to 100Gb/s over a QSFP56 port, with RDMA over Converged Ethernet (RoCE v2) support for low-latency, CPU-efficient data movement between compute and storage nodes. As a baseline SKU in the ConnectX-6 Dx OCP 3.0 family, it omits Secure Boot, Crypto offload, Multi-Host and Socket Direct, focusing instead on core 100GbE RDMA connectivity at a lower cost point. Packaged in a tool-less, hot-swappable OCP 3.0 bracket built around the MT28928A0-XCCF-CE controller, the MCX623435AN-CDAB is a practical choice for single-host server deployments that need reliable 100Gb/s Ethernet with RDMA acceleration but do not require the advanced security or multi-host features found on higher-tier SKUs.