Microsoft Windows Server 2025 Datacenter – 2 Core Add-On License allows organizations to extend an existing Windows Server Datacenter deployment by licensing additional processor cores beyond the base 16-core requirement.

Microsoft Windows Server uses a core-based licensing model, meaning all physical cores on the server must be licensed. The 2-core add-on license provides a flexible way to increase licensing coverage for servers with higher core counts.

These licenses are typically used in combination with base 16-core Windows Server Datacenter licenses to fully license the server hardware.

Key Benefits

Flexible Core Licensing Expansion
Add additional licensed cores to match server hardware specifications.

Supports High-Core Server Hardware
Ideal for modern servers with higher CPU core counts.

Maintains Compliance with Microsoft Licensing
Ensures all cores running Windows Server are properly licensed.

Licensing Requirements

• Requires a base Windows Server Datacenter license

• Each add-on license covers 2 processor cores

• All physical cores on the server must be licensed

Ideal For

• Enterprise servers with more than 16 cores

• High-performance computing environments

• Virtualized infrastructure deployments