Can it be virtual machine? 

Yes, the server can run in a virtual environment. It has been successfully tested on both VMWARE and Hyper-V.

How many processors and cores are needed?

It can run on 1 core. However, we recommend 4 cores. It really depends on how many seizure detection tasks, prune tasks and other tasks will run simultaneously.

How much memory?

8 GB is the minimum. 

How much storage?

Installation package is ~100 MB. Storage for data depends on how many exams are recorded and stored on the server. Archive media can be connected and disconnected as needed.

Can it run on Win2012 R2?

Yes. The software support Windows 2008 R2  and later versions.

Can it run on SQL Enterprise 2014?

Yes. The software supports SQL 2008 R2 up to SQL 2016. Also, based on the workload, SQL Express version can be used.

Which ports have to be available to users, and how do they connect?

A client software is needed to connect to the server. It connects on port 443 using SSL (HTTPS).