The Synaptics FP Sensors (WBF) VFS6101 is a driver package for Synaptics fingerprint sensors. Specifically, the VFS6101 is a model of fingerprint sensor used for biometric authentication, commonly found in laptops and other devices. The WBF (Windows Biometric Framework) refers to a Windows technology that allows integration with fingerprint sensors for user authentication, such as logging into Windows, making secure payments, and other biometric applications.