Azure DevOps Server is a Microsoft product that provides a comprehensive suite of development tools for managing the software development lifecycle. It enables teams to plan, collaborate, and deliver high-quality software products efficiently. Azure DevOps Server is the on-premises version of Azure DevOps, which is the cloud-based equivalent.

Key features of Azure DevOps Server include:

1. Version Control: It supports Git and Team Foundation Version Control (TFVC) for managing source code repositories.

2. Work Item Tracking: It allows you to create and track work items, such as user stories, bugs, tasks, and features, throughout the development process.

3. Build Automation: Azure DevOps Server offers build pipelines to automate the build, test, and deployment processes for your applications.

4. Release Management: It allows you to create release pipelines for deploying your applications to different environments.

5. Test Management: Azure DevOps Server provides tools for test planning, test case management, and test execution.

6. Integration: It integrates with various development tools, including Visual Studio and Visual Studio Code, and supports integration with other third-party tools through APIs.

7. Reporting and Analytics: Azure DevOps Server provides built-in reports and dashboards to gain insights into project progress and performance.

Please note that the features and capabilities of Azure DevOps Server might have evolved or changed since my last update, so I recommend checking Microsoft’s official documentation or website for the most up-to-date information.