An IR Transceiver (Infrared Transceiver) is a hardware device that allows a computer to communicate with other devices via infrared signals. This is often used for remote control functionality, wireless data transfer, or connecting with peripherals such as printers, mobile phones, or other IR-enabled devices. It typically uses the IrDA (Infrared Data Association) protocol, which is a standard for infrared communication.

In the context of Windows, an IR Transceiver Windows driver is the software that enables the operating system to detect and communicate with the infrared transceiver device. Without the correct driver, the transceiver may not work properly, and you may not be able to use infrared features like remote control support or file sharing.