usb composite device Page 38

Ah, the elusive USB composite device—basically a multitasker in the world of USB gadgets. It's a single USB device that presents multiple functionalities to your computer, like a webcam with a built-in microphone or a printer that doubles as a scanner. USB composite devices use a single USB connection but report multiple interfaces to the host, allowing them to perform several roles simultaneously.

They typically comply with the USB standard, and you might see them pop up in device managers as a “composite device.” If your PC throws a tantrum recognizing one, it's often a driver or compatibility issue. For more detailed specs or troubleshooting, have a gander at ServiceCentral or the official device manual.