NVIDIA Mellanox ConnectX-4 EN MCX416A-CCAT
Dual-Port 100GbE Adapter, PCIe 3.0 x16
Host Interface
PCIe 3.0 x16
Port Count
2-port
Port Speed & Connector Type
100GbE, QSFP28 (per port)
Network Protocol / RDMA
Ethernet with RoCE v2 (RDMA over Converged Ethernet)
Controller / ASIC
MT27708A0-FDCF-CE (ConnectX-4 EN)
Product Description
The NVIDIA Mellanox ConnectX-4 EN MCX416A-CCAT is a dual-port 100 Gigabit Ethernet network adapter card built around the ConnectX-4 EN controller (MT27708A0-FDCF-CE), providing two independent QSFP28 ports at full 100Gb/s line rate through a PCIe 3.0 x16 host interface. It supports RDMA over Converged Ethernet (RoCE v2) on both ports, offloading data transport from the host CPU to minimize latency across concurrent high-bandwidth flows. The dual-port design enables active-active link aggregation, port-level redundancy/failover, or independent connections to separate fabrics or storage networks from a single PCIe slot — a common requirement in enterprise, cloud and HPC deployments seeking to maximize per-server bandwidth density. As a standard PCIe add-in card in the Legacy Adapters line, the MCX416A-CCAT is widely deployed in scale-out storage clusters, RDMA-accelerated database tiers and compute-node interconnects requiring dual 100GbE connectivity.