1、HD Screen: 800x480 high-resolution display with 4-inch touch screen, IPS screen, premium and perfect viewing from a wide viewing angle. The backlight can be turned off to reduce power consumption. 2、Compatibility: Compatible with all versions of Raspberry Pi and connect directly (except Pi 1 Model B or Pi Zero, HD multimedia adapter is required). 3、Supported Systems: Supports Raspberry Pi OS, Ubuntu, Kali, and RetroPie systems. 4、Computer Screen: Can be used as a computer monitor; in this case, the touch screen is unavailable and requires an HD multimedia adapter. 5、Note: It is used only for display purposes and does not occupy I/O resources (uses touch screen function, occupies I/O), supports backlight and saves power.