In May 2017, Microsoft introduced new 16-Core Pack Licenses for Windows Server, System Center, and Core Infrastructure Suite (CIS) in addition to the existing 2-Core Pack Licenses. For November 2017, Microsoft is expanding these 16-Core Pack Licenses to Microsoft Products and Services Agreement (MPSA). This new Stock Keeping Unit (SKU) will be a convenient option for customers licensing servers with 16 or fewer cores. It can also serve as an optional base pack for licensing servers with more cores. The 2-Core Pack Licenses will continue to be available, and customers have the choice of two SKUs. There are no changes in the Product Terms and licensing requirements and customers must still license all physical cores on their servers. There is also no difference in pricing between one 16-Core Pack and eight 2-Core Packs.