Features 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 SPI interface, for connecting with controller boards like Raspberry Pi/Jetson Nano/Ardui/STM32, etc. Onboard voltage translator, compatible with 3.3V / 5V MCUs Comes with development resources and manual (examples for Raspberry Pi/Jetson Nano/Ardui/STM32) Package include 1. 2.9inch e-Paper Module x1 2. PH2.0 20cm 8Pin x1 Resources: https://www.waveshare.com/wiki/2.9inch_e-Paper_Module_(B)