Dell EMC Microsoft Storage Spaces Direct Ready Nodes are pre-configured with certified components and validated building blocks that simplify ordering and reduce deployment risks while providing a superb customer support experience  Dell EMC Microsoft Storage Spaces Direct Ready Nodes are built on Dell EMC PowerEdge R730xd Servers, which provide the storage density and compute power to maximize the benefits of Storage Spaces Direct and the advanced feature sets in Windows Server 2016   And you’ll get a single point of contact for sales and technical support for the entire solution.

For the Dell EMC Microsoft Storage Spaces Direct Ready Nodes built with Dell EMC PowerEdge R740xd and PowerEdge R640, refer to http://en.community.dell.com/techcenter/extras/m/white_papers/20444627