At the heart of the Microsoft Cloud OS vision, Windows Server brings Microsoft’s experience delivering global-scale cloud services into your infrastructure. Windows Server Technical Preview provides a wide range of new and enhanced features and capabilities spanning server virtualization, storage, software-defined networking, server management and automation, web and application platform, access and information protection, virtual desktop infrastructure, and more.
Need more information about the next version of Windows Server? See what’s new in Windows Server Technical Preview.
Download and other info - Windows Server Technical Preview | TechNet Evaluation Center