Mellanox Technologies announced 10 and 40GbE NIC support for the Microsoft OCP server and storage specification which are based on hardware used to power Microsoft’s global cloud services, including Windows Azure, Bing, and Office 365.

"The growth of hyperscale computing requires new paradigms in infrastructure, and Mellanox Ethernet NICs provide rich performance and efficiency features, such as overlay network offloads and RDMA/RoCE to provide the best infrastructure return-on-investment,” said Kevin Deierling, vice president of marketing at Mellanox Technologies. “We’re pleased to collaborate with Microsoft in delivering 10/40GbE NIC technology to their OCP server and storage designs to enable superior cloud productivity, efficiency, and sustainability.”
http://www.mellanox.com/page/ocp