1、CONTENT DISPLAY: 4.26inch E paper display module does not need backlight, power failure can keep the last screen display content for a long time. 2、LOW POWER CONSUMPTION DESIGN: 4.26 inch E paper display module has very low power consumption, basically only consumes power when refreshing, stable performance and long lasting use time. 3、FOR RPI 40 PIN GPIO INTERFACE DESIGN SPI interface electronic paper screen based on for RPi 40 PIN GPIO interface design, applicable to for RPi series. 4、SPI CONTROL INTERFACE: SPI control interface, can access for RPi, for Jetson for Nano, for RDK×3, for STM32 and other main control boards. 5、3.3V AND 5V MICROCONTROLLER INTERFACE: E paper screen modul adopts on board level shifter chip, compatible with 3.3V and 5V microcontroller interface.