Microsoft Windows Server 2012 DataCenter 64bit

Key Features:
Virtual Machine Support:

The most important advantage of Windows Server 2012 Datacenter R2 lies in the management of virtual machines. This version supports running an unlimited number of virtual machines, making it an ideal choice for data centers that need to manage many virtual environments.
Hyper-V technology allows for rapid deployment and management of virtual machines.
Scalability and Performance:

R2 versions have improved performance and scalability compared to previous versions.
It supports 64-bit processors, so it can handle large amounts of memory and multiple processors. This is especially beneficial for high-traffic and compute-intensive applications.
The R2 version supports larger data centers, more data management solutions, and more advanced file management capabilities.
Server Management:

Windows Server 2012 Datacenter R2 is easy to manage with Server Manager and PowerShell. These tools enable you to quickly and efficiently manage, configure, and monitor your servers.
Automation: PowerShell makes it easy to automate administrative tasks such as installing updates, adding users, and system maintenance.
Storage solutions:

iSCSI Target and Storage Spaces help companies manage and expand storage options efficiently, so they can easily manage their data.
Deduplication compresses stored data, optimizing storage capacity, which is especially beneficial when handling large amounts of data.
Active Directory and Network Services:

Active Directory continues to manage central authentication for companies, providing centralized management of users and devices within the network.
Support for DirectAccess and VPN provides secure network access for remote workers.
IPAM (IP Address Management) and DHCP failover functions help manage network devices more efficiently and provide redundancy.
Security and Reliability:

The R2 version includes several improvements in security, such as Secure Boot, Windows Defender, and BitLocker support.
Windows Server 2012 Datacenter R2 helps you securely manage network traffic and privacy issues in modern data centers.
Enhanced virtualization:

Hyper-V R2 virtual machine manager and hypervisor technology enables you to efficiently manage thousands of virtual machines with optimized performance.
Why choose Windows Server 2012 Datacenter R2?
Excellent virtualization capabilities: If you need to run a large number of virtual machines,and you don't want to work with limited resources, the Datacenter edition is the best choice.
Scalability: If you are facing constantly growing data management needs, the Datacenter edition provides the right resources and performance.
Modern storage: New storage features such as Storage Spaces and Data Deduplication allow you to manage data efficiently.
Secure infrastructure: If data protection and security are a top priority for your company, Windows Server 2012 Datacenter R2 offers a number of advanced security features.
Summary:
Windows Server 2012 Datacenter R2 is an advanced server operating system that enables large enterprises to achieve flexible and scalable data management, advanced virtualization, and secure network communications. The Datacenter edition supports running an unlimited number of virtual machines and offers a number of business-grade services and features that companies can use for their daily operations.

If your goal is to create a high-performance data management or server virtualization environment, Windows Server 2012 Datacenter R2 may be the perfect choice.