NVIDIA Mellanox ConnectX-6 MCX614106A-VCAT
ConnectX-6 EN, dual-port 200GbE, PCIe 3.0 x16 Socket Direct
Host Interface
2x PCIe 3.0 x16 (NVIDIA Socket Direct)
Port Count
2-port
Port Speed & Connector Type
200Gb Ethernet, QSFP56
Network Protocol / RDMA
Ethernet, RoCE v2
Controller / ASIC
MT28908A0-XCCF-HVM (ConnectX-6)
Product Description
The NVIDIA Mellanox ConnectX-6 EN network adapter (MCX614106A-VCAT) is a dual-port 200GbE card built on the ConnectX-6 (MT28908) ASIC, designed to deliver maximum Ethernet throughput even on PCIe Gen 3 server platforms. Because a single PCIe 3.0 x16 slot cannot fully saturate two 200Gb ports, this card uses NVIDIA Socket Direct technology — two PCIe 3.0 x16 connectors (a main card plus an auxiliary riser) — to combine 32 lanes of host bandwidth and preserve near line-rate performance across both QSFP56 ports. It supports RDMA over Converged Ethernet (RoCE v2) for low-latency, CPU-efficient data movement, along with the adaptive routing, out-of-order RDMA data placement, and high message-rate engine that make ConnectX-6 a mainstay in HPC and AI clusters. With dual 200GbE ports and Socket Direct bandwidth aggregation, the MCX614106A-VCAT suits compute nodes needing maximum network throughput while constrained to Gen 3 PCIe host platforms.