USB interface ICs are integrated circuits (ICs) that enable the connection of various electrical devices to a USB port on a computer or other host. USB interface ICs provide the interface technology that enables the connection of both legacy and new peripherals, such as keyboards, mice, smartphone applications, cameras, printers, and scanners. They also enable the transfer of data between peripherals and computers. USB interface ICs can be implemented as standalone components, or they can be embedded within a device or system. USB interface ICs typically consist of a USB transceiver, various logic gates, and other components for managing the flow of data across the USB connection.