The vCenter Server Foundation license supports up to 4 ESXi hosts.

With VMware, you can run different programs on the same computer and use more of the pc power. VMware lets you run more apps with fewer physical servers. Fewer physical servers take up less space in your data center and use less energy to power and cool.

vCenter helps organizations manage their IT better by giving them control over their resources, making sure everything is always available, automating tasks, keeping things safe, making it easy to expand, and saving money.

VMware vCenter Server Foundation provides powerful management tools for smaller environments looking to rapidly provision, monitor, and control virtual machines. It must be purchased separately to manage VMware vSphere server hosts and enable many of the features.