MCT3718 subcscription details

currently, we are going to renew our satellite subscription ;
I have a question regarding MCT3718 subscription for satellite infrastructure .
I wonder if the basic 50 quantities in this subscription includes both physical and virtual servers? and if total servers in our environment is less than 128 socket of its limit do we need any additional subscription for our other physical servers or MCT3718 is enough ?

Best Regards