This is a general purpose scan line Video and Audio effect generator for HDMI connection. It allows you to get better view for low resolution graphics displayed on a modern big screen high resolution HDMI monitor or TV. The scan lines added to the game screen are done by hardware. Any game that needs to add a scan line can be done by linking the device The scanner is a self-powered device and does not require an external power supply. It Can support some classic nostalgic games/arcade game.Easy to install and convenient to use. Durable construction for long-lasting performance With this scan line generator, you will have better experience in your game.Re-experience and enjoy classic picture for arcade game, bring you much fun and convenience