Windows Server 2012 R2 provides enterprise-class datacenter and hybrid cloud solutions that are simple to deploy, cost-effective, application-focused, and user-centric.
Windows Server licensing makes choosing the right edition of Windows Server easier. Choose from four editions of Windows Server, based on the size of your organization and your requirements for virtualization and cloud computing. Windows Server 2012 R2 Datacenter with unlimited virtualization rights provides the benefits of cloud-level scale with predictable, lower costs. Windows Server 2012 R2 Standard offers the same enterprise-class features without unlimited virtualization rights. Windows Server 2012 R2 Essentials is an ideal cloud-connected first server.
*CALs are required for every user or device accessing a server. See the [Product Use Rights](http://www.microsoft.com/licensing/about-licensing/product-licensing.aspx) for details.
**Pricing represents Open No Level (NL) ERP. For your specific pricing, contact your Microsoft reseller.
You can purchase Windows Server licenses through multiple channels, providing you with optimum flexibility. Learn more about the channels below and determine the option that best meets your needs.