This software is only available with an active cloud service subscription.
With the Per Device CAL model, a separate CAL is required for each unique device that accesses a server. If more than one person uses a specific computer, one CAL will allow all of them to access the server from that computer. However, if one of these users also uses another computer to access the server, the additional computer will need a Per Device CAL as well.
A typical example of the Per Device CAL might be for a company that has two Exchange Servers used by 200 employees on 150 computers. This would require two server licenses (to install the product on the servers) and 150 Per Device CALs. Because a CAL is assigned to each device, the number of users accessing the servers is unimportant.