The AMD UCM-UCSI Device is a driver associated with USB Type-C and USB Power Delivery (USB PD) functionalities in laptops and desktops that use AMD processors and chipsets. Specifically, this driver enables support for the USB Type-C port and its related features, such as faster data transfer, power delivery (charging devices), and the ability to connect to external monitors using the USB-C port.
The UCSI (USB Type-C Connector System Software Interface) is a software interface used to control the behavior of USB Type-C connectors, particularly for power delivery and alternate modes (such as DisplayPort over USB-C). It works in conjunction with the UCM (USB Type-C UCSI Controller) on AMD systems to manage the interaction between the hardware and the operating system.