The Remote Server Administration Tools are available from the base Windows Server installation without the need to install the roles it supports. If you want to set up a management server to administer all of your Windows infrastructure form a single console you can install all of them with a single PowerShell line.RSAT

Get-WindowsFeature RSAT* | Install-WindowsFeature

Once installed you can confirm that they are all there by checking server manager tools or by running:

Get-WindowsFeature RSAT*