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
→ Standard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi series boards, Jetson Nano
→ Onboard 4x Keys
→ SPI interface, for connecting with other controller boards like Raspberry/Arduino/Nucleo, etc.
→ Onboard voltage translator, compatible with 3.3V/5V MCUs
→ Comes with development resources and manual (examples for Raspberry Pi/Jetson Nano/Arduino/STM32)

Technical Specs

→ Operating voltage: 3.3V/5V
→ Interface: 3-wire SPI, 4-wire SPI
→ Outline dimension: 85mm × 56mm
→ Display size: 57.288mm × 38.192mm
→ Dot pitch: 0.217 × 0.217
→ Resolution: 264 × 176
→ Display color: red, black, white
→ Grey level: 2
→ Full refresh time: 15s
→ Refresh power: 26.4mW(typ.)
→ Standby power: <0.017mW
→ Viewing angle: >170°

Resources

www.waveshare.com/wiki/2.7inch_e-Paper_HAT_(B)