The following table contains information about the support limits at each site type and for client-facing site system role. This information is based on the recommended hardware for site systems. For information about the recommended hardware for Configuration Manager sites, see Planning for Hardware Configurations for Configuration Manager. For information about the minimum required hardware to run a Configuration Manager site, see Minimum Hardware Requirements for Site Systems, in this topic. For information about the number of clients supported by each site or hierarchy, see Client Support Numbers for Sites and Hierarchies, in this topic.