Adafruit 2.23″ Monochrome Organic LED (OLED) Bonnet is designed to snap onto any Raspberry Pi computer to provide a vivid display. This OLED fits on flat surfaces that have an open top to insert the display. The bonnet has a 2.13″ diagonal monochrome 128×32 OLED with sharp white pixels. This monochrome OLED works with any Raspberry Pi computer with a 2×20 connector, such as the Pi B+, Pi 2, Pi 3, Pi 4, and Pi zero.