The LENOVO 4849MKS provides an essential upgrade for small businesses using Windows Small Business Server (SBS) 2011, offering the Premium Add-on package. This add-on enhances the base server capabilities by supporting additional CPUs (1-4) and including 5 Client Access Licenses (CALs), allowing for a broader scale of operations and more users to access server resources. The Premium Add-on comes with additional features and tools designed to improve business efficiency, such as advanced data management, analysis services, and a richer set of database capabilities. Ideal for small businesses looking to expand their IT infrastructure, streamline operations, and enhance productivity, this add-on provides an affordable yet powerful way to leverage more from the Windows SBS 2011 platform.