PTC-TWIN PACK Premium DVI-D Male (24+1) to VGA Female Adapters DVI-D (24+1 pins) Male to VGA Female Adapter for LCD HDTV screen. * Provides a simple solution for using the dual monitors for work/game environment. * If your display card has two output ports, one VGA and one DVI, then, you can simply attach the adapter to the DVI connector from your video card and convert it to VGA connector for dual monitor/projector applications. * If you are connecting the adapter to the VGA port, your video card will need to have the DVI-D conversion function. LIFETIME Warranty and free lifetime tech support.