Microsoft Open License Program (OLP) Academic is for Schools, Libraries, and Museum purchase only. Minimum 8-unit purchase per physical server.
Please note: Windows Server 2019 Standard Licenses are sold based on the number of cores of your processors. Each Windows Server License covers 2 cores and there is an 8 license purchase minimum per physical server. Windows Server Standard licenses include rights to two Operating System Environments (OSEs, or virtual machines) or Hyper-V containers per properly licensed physical server.