NVIDIA Mellanox ConnectX-6 MCX623435MN-CDAB OCP3.0
ConnectX-6 Dx EN 1-Port 100GbE OCP3.0 Adapter with Multi-Host and Socket Direct
Host Interface
PCIe 4.0 x16
Port Count
1-port
Port Speed & Connector Type
100GbE, QSFP56
RDMA / Network Protocol
RoCE v2 (RDMA over Converged Ethernet)
Multi-Host
Supported (✔)
Product Description
The NVIDIA Mellanox ConnectX-6 MCX623435MN-CDAB is a single-port 100GbE OCP3.0 adapter built on the ConnectX-6 Dx EN controller (MT28928A0-XCCF-CE), engineered for multi-host server architectures. It combines a 100Gb/s QSFP56 port over PCIe 4.0 x16 with NVIDIA's Multi-Host technology, allowing a single adapter to be shared across multiple independent compute nodes or CPU sockets, and Socket Direct technology, which splits the PCIe interface across sockets to eliminate cross-socket data-path bottlenecks in dual-socket servers. Combined with RoCE v2 RDMA support, this makes the MCX623435MN-CDAB well suited for hyperscale and cloud infrastructure that consolidates networking across multiple servers or CPU sockets onto a shared NIC, reducing per-node NIC cost and cabling complexity while maintaining full 100GbE performance and low latency for each host.