This is an E-Ink display module, 2.9inch, 296x128 resolution, with embedded controller, communicating via SPI interface, supports partial es with development resources and manual (examples for Raspberry Pi/Jetson Nano/Arduino/STM32 Comes with development resources and manual (examples for Raspberry Pi/Jetson Nano/Arduino/STM32), Specifications Operating voltage: 3., 3V/5V E Ink Display 296x128 Resolution 2.9 Inch Panel Module 3.3v E- Ink Electronic Screen SPI Interface With Embedded Controller Support Partial Refresh For Raspberry Pi/Arduino/Nucleo/Jetson Nano E-paper Display Raspberry Pi 5 Case Due to the advantages like ultra low power consumption, wide viewing angle, clear display without electricity, it is an ideal choice for applications such as shelf label, industrial instrument, and so on. Refresh power: 30mW(typ., ), Standby power: , Viewing angle: 170°, Package Content 2., 9inch e-Paper Module (B) x1PH2., 0 20cm 8Pin x1Development Resources Wiki : www., waveshare., com/wiki/2., 9inch_e-Paper_Module_(B)?amazon This is an E-Ink display module, 2., 9inch, 296x128 resolution, with embedded controller, communicating via SPI interface, supports red, black, and white three-color display. E-ink Display Raspberry Pi Zero Waveshare 2.9inch E-Paper Module Compatible With Raspberry Pi 4B/3B /3B/2B/B /A /Zero/Zero W/WH/Zero 2W Series Boards 296×128 Pixels Arduino Uno Epaper Display 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 Display color: red, black, white, Grey level: 2 Features No backlight, keeps displaying last content for a long time even when power down