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title: Data Sources | Developer Documentation
description: Overview of data source integrations for Index for connecting and retrieving data for RAG use cases.
---

# Data Sources

A data source is a connection to the data you want to be retrieved as part of your RAG use case. We support a variety of integrations that automatically connect to your data:

Once the files from your Data Source have been loaded into Index, they will be pre-processed before being sent to their final destination in the [Data Sink](../../integrations/data_sinks/). This is where you’ll setup the parsing configuration for your index ➡️