Windows SBS 2011 Standard is a great opportunity for small businesses with prior versions of Windows SBS to upgrade their servers and to simultaneously take advantage of the advancements in security, reliability, and connectivity technology.
Microsoft Windows Server
Windows Small Business Server 2011 Standard (Windows SBS 2011 Standard) is the right server for small businesses that need a complete, on-premise solution with enterprise-class Windows server technologies for communication and collaboration.
Windows Small Business Server 2011 Essentials (Windows SBS 2011 Essentials) is a new, easy-to-use, first-server solution designed and priced especially for small businesses (up to 25 users) that can seamlessly integrate into online services such as Office 365, cloud backup and cloud management solutions.
Windows Small Business Server 2011 Premium Add-on (Windows SBS 2011 Premium Add-on) is a powerful data management and analysis solution that includes a second Windows Server 2008 R2 license and SQL Server 2008 R2 technologies.