Power BI dashboards can integrate data from a wide variety of sources, making them highly versatile. These sources include traditional databases like SQL Server, cloud services such as Azure and Google Analytics, Excel spreadsheets, and web-based APIs. Additionally, Power BI supports real-time data from IoT devices, streaming data sources, and social media platforms. With built-in connectors, users can easily link these data sources to their dashboards. This flexibility enables businesses to gather and analyze data from multiple platforms, creating a unified view of key business metrics.