Easily migrate your file share content to SharePoint Online and OneDrive using Azure Data Box and the SharePoint Migration Tool. Moreover using the Data Box, you no longer need to depend on the WAN link to transfer the data. Talking about the Microsoft Azure Data Box, it is essentially a service that enables you to order a device from the Microsoft Azure portal. You can copy terabytes of data from your servers to the device. Once you ship it back to Microsoft the data is copied into Azure.