USB (Universal Serial Bus) technology is commonly used in access control systems for various purposes. It provides a convenient and versatile means of connecting devices and transferring data, making it a valuable component in these systems. Here are some common ways USB is used in access control:

Card Enrollment: USB card readers are used to enroll access control cards or key fobs into the system. When a new user is added to the access control system, their card's unique identifier is read by the USB card reader and stored in the system's database.

Software Configuration: Access control systems often use USB connections to configure and program controllers, panels, and other system components. Configuration software is loaded onto a computer via a USB connection, and this software communicates with the control hardware to set access permissions and system parameters.

Firmware Updates: USB connections are used to update the firmware of access control hardware components, such as controllers or readers. Firmware updates can add new features, improve security, or fix software bugs.