The SAMSUNG Android USB Composite Device driver is a software package that allows your Windows computer to communicate with your Samsung Android device (such as a smartphone or tablet) via USB. This driver is typically used when you connect your Samsung Android device to your PC for tasks like file transfer, charging, debugging (for developers), or using apps like Samsung Smart Switch or Samsung Kies.

The "USB Composite Device" refers to the fact that the Samsung device may include multiple functions over a single USB connection, such as file transfer (MTP), media device (MTP), or even USB tethering. The proper driver ensures that Windows can recognize and utilize these features.