Part Number: 3.97 inch e-Paper HAT+ (G) 3.97 inch E-Paper Display (G), E-Ink Display, 800 × 480 pixels, Red/Yellow/Black/White, SPI Interface, Compatible with Raspberry Pi 40PIN GPIO header No backlight, keeps displaying last content for a long time even when power down Ultra low power consumption, basically power is only required for refreshing Compatible with Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi and Jetson Nano series boards