250x122 Resolution, Wide viewing angle, Clear display without electricity, An ideal choice for shelf label, industrial instrument, etc. Onboard voltage translator, for 3.3V/5V MCUs. 3-wire SPI, 4-wire SPI Interface, 65mm × 30.2mm Outline dimension, 23.71mm × 48.55mm Display size. Doesn't support partial refresh. 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. Onboard Standard Pi 40PIN GPIO extension header, supports Raspberry Pi series boards and Jetson Nano. with SPI interface, for being for etc. other controller boards. With online development resources, manual (examples for Raspberry Pi/Jetson Nano etc.) and precautions for e-paper screen refresh, Please refer to these while using.