Which service provides insights through visual dashboards?

AWS QuickSight is the correct choice as it is specifically designed for business analytics and provides users with the ability to create visual dashboards that display insights derived from data. This service allows individuals and organizations to visualize their data in an intuitive manner, enabling them to discover trends, patterns, and details that might not be readily apparent in raw data. QuickSight integrates seamlessly with various data sources, including AWS services like S3 and Redshift, as well as third-party databases, facilitating the creation of interactive dashboards that help users make informed decisions based on data-driven insights.

The other options do not fulfill this role. AWS Direct Connect is focused on establishing dedicated network connections between on-premises data centers and AWS, rather than providing visualization capabilities. AWS IAM (Identity and Access Management) is concerned with security and access control, including user authentication and permission management, which does not involve data visualization. AWS CloudFormation is a service used for deploying and managing AWS resources using infrastructure as code, and while it plays a crucial role in resource management, it does not provide insights or visual dashboards for data analysis.