4inch DSI Round Touch Display, IPS screen, 720 x 720 hardware resolution. ^^Support 10-point capacitive touch, toughened glass panel with up to 6H hardness. ^^Drive the LCD directly via the DSI interface of the Raspberry Pi, up to 60Hz refresh rate. ^^When used with Raspberry Pi, the Raspberry Pi driver is provided. Compatible with Raspberry Pi 5/Pi 4B/3B+/3A+. Aslo Compatible with Raspberry Pi Compute Module 4/Compute Module 3+/CM3, but when it works with Compute Module 4/Compute Module 3+/CM3, the extra DSI-Cable-15cm is required. ^^Supports software control of backlight brightness.