The Yamaha Steinberg USB Audio Driver is a software driver designed for Yamaha and Steinberg audio interfaces, such as external USB sound cards, audio interfaces, or audio equipment that connects to a computer via USB. This driver allows the connected audio interface to communicate with the Windows operating system, ensuring proper functionality of the device for recording, playback, and sound processing tasks.

Yamaha and Steinberg often use this driver for their USB audio interfaces, such as the Steinberg UR series, Yamaha AG series, or other audio devices like mixers and audio controllers. The driver ensures that the operating system recognizes the audio interface, enabling the full functionality of input (mic, guitar, line-in) and output (speakers, headphones) audio signals.