A USB-Infrared Adapter (or USB IR Adapter) is a device that allows a computer to communicate with infrared (IR) devices, such as remote controls, infrared sensors, or other IR-enabled gadgets. It typically connects to your computer via a USB port and provides a way to send and receive infrared signals. These adapters are often used for controlling home appliances, media devices, or connecting to IR-enabled devices for data transfer.

The Windows driver for a USB-Infrared Adapter enables the operating system to recognize and properly interface with the adapter. Without the appropriate driver, the adapter may not function correctly, or Windows may not be able to identify the device at all.