You can use ODBC Connector to read data from any application that is ODBC compliant.
Use an ODBC connection in mappings and mapping tasks to connect to sources and lookups.
Example
You want to migrate sales data from DB2 to Salesforce. You do not have a DB2 Connector to read sales data from DB2 source. You can use ODBC Connector to migrate sales data from DB2 to Salesforce.
Important: If Informatica offers a dedicated connector specific for your database type, use that connector instead of ODBC Connector. For example, use Oracle Connector instead of ODBC Connector to connect to an Oracle database.