The LENOVO 4849MKR is a premium add-on for Windows Small Business Server (SBS) 2011, designed to accommodate businesses with 1-4 central processing units (CPUs) and includes 5 Client Access Licenses (CALs). This add-on enhances the base capabilities of Windows SBS 2011, offering additional features and functionalities to support the advanced needs of small businesses. It includes support for additional servers, providing the flexibility to run more powerful applications and leading to improved productivity and efficiency. With the premium add-on, businesses gain access to technologies such as SQL Server for advanced database management and Hyper-V for creating and managing virtual servers. These features are critical for small businesses looking to scale their operations, implement robust data management practices, and ensure their infrastructure can support increasingly complex workloads. The LENOVO 4849MKR Windows SBS 2011 Premium Add-on is an ideal solution for small businesses seeking to enhance their IT capabilities and drive growth.