Power BI makes it easy to connect your reports and dashboards to disparate data sources. Power BI can natively connect to databases and services on-premises or in the cloud such as SQL Server, Oracle, SharePoint, Dynamics CRM, Dynamics 365, Salesforce, Excel workbooks, and many other third-party systems. There is no need for a developer to configure connection strings or complicated ETL (Extract, Transform, and Load) processes. 

Microsoft Power BI's utilization of HTML5 and specially-developed phone and tablet apps allow for access from almost any device. Combined with real-time, cloud-based data connections, data is available 24/7 from anywhere.