Amazon RDS (Relational Database Service) is a fully managed relational database service from AWS. It takes over setup, configuration, backups and updates, so production databases run without you managing servers or database software. Supported engines include PostgreSQL, MySQL, MariaDB, SQL Server, Oracle, Db2 and the Aurora editions. Multi-AZ deployments replicate data synchronously across Availability Zones and fail over automatically to a standby.
Amazon RDS is a service of Amazon Web Services, part of Amazon.com, Inc. (headquartered in Seattle, Washington), and is therefore subject to US jurisdiction, even in a European region. According to AWS, customers control the region where their customer data is stored. AWS acts as a processor under the GDPR and offers a data processing addendum with Standard Contractual Clauses. Because the parent is a US company, legislation such as the CLOUD Act remains relevant. Choosing a European region helps, but it does not remove the dependency on a US provider.