PSPdisp gives you an additional monitor with a 960×544 resolution (four times the area of the PSP display). There are four components working together, on Windows a display driver, an usb driver and the interface application which captures the screen, compresses it and sends it over USB to the PSP. On the PSP side there is an application that decompresses the frames and displays them. All settings are adjustable from the Windows side, the PSP really only acts as a passive display.