NVIDIA Mellanox ConnectX-5 MCX515A-CCUT

The NVIDIA Mellanox MCX515A-CCUT is a single-port 100 Gigabit Ethernet adapter from the ConnectX-5 EN family, sharing the same MT27808A0-FCCF-EV controller and PCIe 3.0 x16 host interface as the MCX515A-CCAT, but adding UEFI-enabled firmware and explicit support for both ARM and x86 host architectures. This makes the MCX515A-CCUT a strong fit for mixed-architecture data centers and emerging ARM-based server platforms that require pre-boot network initialization through UEFI. Like other ConnectX-5 EN cards, it provides hardware-accelerated RoCE v2 RDMA for low-latency, low-CPU-overhead networking across storage, cloud, and HPC deployments. The card retains the field-proven ConnectX-5 offload architecture while broadening platform compatibility, making it a practical option for integrators deploying both traditional x86 servers and ARM-based edge or hyperscale infrastructure on a single qualified adapter SKU.