The USB IrDA Infrared Adapter works pretty much the same way as the IrDA Infrared Drive. Although it is not 100% plug-n-play like the Infrared Drive, it is designed to be easily installed to your system. Upon inserting to your PC's USB port, Windows can immediately detects a new device being connected to the system. All you have to do next is to supply Windows with the location of the driver file. And the rest is pretty much done automatically. The USB IrDA Infrared Adapter allows users who have an extra USB port to easily add IrDA infrared port without having have to open up the computer case.