# Input options tab

![Input options tab in Mongo Input](https://3411831820-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FAYwCj9fPr1B2pjC11IOQ%2Fuploads%2Fgit-blob-2194d871faf9a16357298ab1ca2467b76bc4d31d%2FPDI_TransStep_MongoDB_Input_Input_Options_Tab.png?alt=media)

In the **Input options** tab, specify which database and collection you want to retrieve information from. You can also indicate the read preferences and tag sets.

Enter the following information in the **Input options** fields:

| Option              | Definition                                                                                                                                            |
| ------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------- |
| **Database**        | Name of the database to retrieve data from. Click Get **DBs** to populate the drop-down menu with a list of databases on the server.                  |
| **Collection**      | Name of the collection to retrieve data from. Click **Get collections**to populate the drop-down menu with a list of collections within the database. |
| **Read preference** | Specify which node to read first: **primary**,**primary preferred**, **secondary**, **secondary preferred**, or **nearest**.                          |