Fault Tolerance for more than 4vCPU?

Hi Folks,

I have tested fault tolerance for 4 vCPUs and it's works perfectly fine.Right now I am using the evaluation license.

My question is, if we purchase the licenses then will the 4 vCPUs limitation be removed or can we purchase two or more licenses to support more vCPUs? So far what I have read FT is supported upto only 4 vCPUs and 64GB RAM.

So let's say I have a VM of 20 vCPUs and 128GB RAM, then there's no way I can have FT for that,right? If not, what is an alternative to have FT like feature?Can Site Recovery Manager be used to fulfill FT needs?

Thanks,

Siddhesh