Part Number: 3.7 inch e-Paper HAT+ (G) 3.7 inch E-Paper Display (G), E-Ink Display, 416 × 240 pixels, Red/Yellow/Black/White, SPI Interface 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 Standard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi and Jetson Nano series boards