The Layer2 Cloud Connector allows users to integrate and synchronize data between Microsoft SQL Server and over 100 other sources, both on-premises and in the cloud. It does not require any customization, installation, programming or complex tools like SSIS - users can set it up within minutes using a wizard. The connector runs as a Windows service on the user's server to securely transfer data without exposing it to third parties. It supports syncing SQL data with applications like SharePoint, Office 365, and CRM systems. Licensing is per installation with various paid editions available and no required user CALs.