This is 2.13inch E-Ink display HAT for ,250x122 resolution, with embedded controller, communicating via SPI interface, supports partial refresh. Due to the advantages like ultra low consumption, wide viewing angle, clear display without , it is a perfect choice for applications such as shelf label, industrial instrument, and so on. No backlight, keeps displaying last content for a long time even when Ultra low consumption, basically is only required for refreshing Standard 40PIN GPIO extension header, supports series boards, Nano. Preserved solder pads for SPI interface, for connecting with other controller boards like /Nucleo, etc.Onboard voltage translator, with 3.3V/5V MCUs Operating voltage: 3.3V/5V. Interface: SPI. Outline dimension: 65mm x 30.2mm. Display size: 23.71mm x 48.55mm. Dot pitch: 0.194 x 0.194. Resolution: 250 x 122. Display color: black, white. level: 2. Partial refresh time: 0.. Full refresh time: 2s. Refresh : 26.4mW(typ.). Standby : 170. color:Blue Material:PCB Package Contents: 1 x 2.13inch e-Paper HAT 1 x RPi screws pack 1 x 20cm 8Pin Cable Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.